CN106169281A - Flicker of display panel degree regulation equipment and control method - Google Patents
Flicker of display panel degree regulation equipment and control method Download PDFInfo
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- CN106169281A CN106169281A CN201610822310.0A CN201610822310A CN106169281A CN 106169281 A CN106169281 A CN 106169281A CN 201610822310 A CN201610822310 A CN 201610822310A CN 106169281 A CN106169281 A CN 106169281A
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- Prior art keywords
- flicker
- public electrode
- brightness
- degree
- electrode voltages
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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
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
A kind of flicker of display panel degree control method, including: by camera head, display floater target picture of display under different public electrode voltages is shot the multiframe target picture obtained under each public electrode voltages；The multiframe target picture under each public electrode voltages according to camera head shooting calculates display floater integral panels flicker degree under each public electrode voltages；Determine in display floater integral panels flicker degree under each public electrode voltages minimum integral panels flicker degree, and determine that public electrode voltages corresponding to the integral panels flicker degree of minimum is optimal public electrode voltages value；And produce the voltage public electrode to display floater that size is described optimal public electrode voltages value.The present invention also provides for a kind of flicker of display panel degree regulation equipment, by regulation equipment and the control method of the present invention, can realize the preferably flicker degree of display floater by the public electrode entirety of display floater is applied a voltage.
Description
Technical field
The present invention relates to a kind of regulation equipment, particularly relate to a kind of flicker of display panel degree regulation equipment and control method.
Background technology
The display floaters such as liquid crystal panel, some there will be image residue (IS, Image when service life is longer
Sticking) phenomenon, have impact on the quality of product.By checking, find flicker degree (flicker) and the image of display floater
Residual positive correlation, the display floater that when dispatching from the factory, flicker degree is the most serious, occur that the probability of image residue is the biggest follow-up.Therefore, logical
Often need before dispatching from the factory, the flicker degree of display floater to be adjusted.Owing to flicker degree is relevant to Vcom (public electrode voltages),
Common flicker degree control method is the flicker degree of display floater central area to be transferred to most preferably by regulation Vcom, but,
When the flicker degree ensureing display floater central point is optimal, the flicker degree situation away from the peripheral region of central point can compare central point
Position is serious, result in peripheral region and still there will be the situation of image residue, for large-sized display floater, especially
There will be this situation.Also having a solution is that display floater carries out subregion, and different subregions uses different Vcom
Make the flicker degree regulation of regional to most preferably, but the circuit realiration of this scheme is relatively costly.
Summary of the invention
The present invention provides a kind of flicker of display panel degree regulation equipment and control method, can be by simple structure by whole
The flicker degree regulation of display floater is to a preferably level.
A kind of flicker of display panel degree regulation equipment, for by being adjusted the public electrode voltages of a display floater
And regulate the flicker degree of described display floater, wherein, described flicker of display panel degree regulation equipment includes: camera head, is used for
Described display floater target picture of display under different public electrode voltages is carried out shooting and obtains each public electrode voltages
Under multiframe target picture；And processing means, including: panel scintillation computing unit, for according to camera head shooting
Multiframe target picture under each public electrode voltages calculates described display floater integral face under each public electrode voltages
Plate flicker degree；And optimal public electrode voltages computing unit, it is used for determining that described display floater is in each public electrode voltages
Under integral panels flicker degree in minimum integral panels flicker degree, and determine that the integral panels flicker degree of described minimum is corresponding
Public electrode voltages is optimal public electrode voltages value；Described optimal public electrode voltages computing unit and for by described most preferably
Public electrode voltages value is sent to a voltage generating unit, so that it is described optimal public affairs that described voltage generating unit produces size
The voltage of common electrode magnitude of voltage is to the public electrode of display floater.
Wherein, described panel scintillation computing unit includes: Image Acquisition subelement, for receiving camera head shooting
Some frame target picture under each public electrode voltages；Image division sub-unit, for by under each public electrode voltages
Each frame target picture is divided into several sprites；Brightness calculation subelement, is used for adding up each sprite described some
Brightness value in frame target picture, and obtain some brightness values of each sprite, and if determining the dry brightness of each sprite
Maximum brightness value in value and minimum luminance value；And flicker degree determines subelement, it is used for according to each sprite described
Maximum brightness value in some frame target picture and minimum luminance value determine the flicker of the viewing area that each sprite is corresponding
Degree；And be used for and determine that described display floater exists according to the weight of each viewing area and the flicker degree of each viewing area
Integral panels flicker degree under each public electrode voltages.
Wherein, described brightness calculation subelement statistics each sprite brightness value bag in described some frame target picture
Include: described brightness calculation subelement obtains the brightness value of all pixels in each sprite in each frame target picture,
And the brightness value of all pixels of each sprite is carried out cumulative and obtains the corresponding sprite in each frame target picture
Brightness value.
Wherein, described flicker degree determines that subelement is according to formula F licker_P=(MAX_brightness-MIN_
Brightness)/Average_Brightness calculates the flicker degree of viewing area corresponding to each sprite
Flicker_P, wherein, MAX_brightness is the maximum brightness value in some brightness values of corresponding sprite, MIN_
Brightness is the minimum luminance value in some brightness values of corresponding sprite, Average_Brightness=(MAX_
brightness+MIN_brightness)/2。
Wherein in, described flicker degree determines that subelement is according to formula F licker_Y=i_11*Flicker_P11+i_12*
Flicker_P12+i_13*Flicker_P13+......+i_jk*Flicker_Pjk+... ... i_ef*Flicker_Pef counts
Calculating integral panels flicker degree Flicker_Y of display floater, wherein, in formula, i_jk refers to the viewing area of jth row kth row
Weighted value, Flicker_Pjk is the flicker degree of viewing area of jth row kth row, i_11+i_12+i_13+.....+i_jk
+ ...+i_ef=1, wherein, the size of the weighted value of each viewing area is configured according to the characteristic of display floater.
Also provide for a kind of flicker of display panel degree control method, for by the public electrode voltages of a display floater is entered
Row regulates and regulates the flicker degree of described display floater, and wherein, described method includes: by camera head to described display floater
Under different public electrode voltages, the target picture of display carries out shooting the multiframe target picture obtained under each public electrode voltages
Face；The multiframe target picture under each public electrode voltages according to camera head shooting calculates described display floater in each public affairs
Integral panels flicker degree under common electrode voltage；Determine that described display floater integral panels under each public electrode voltages is dodged
Integral panels flicker degree minimum in bright degree, and determine that public electrode voltages corresponding to the integral panels flicker degree of described minimum is
Optimal public electrode voltages value；And described optimal public electrode voltages value is sent to a voltage generating unit, so that institute
State voltage generating unit and produce the voltage public electrode to display floater that size is described optimal public electrode voltages value.
Wherein, described step " calculates according to the multiframe target picture under each public electrode voltages of camera head shooting
Described display floater integral panels flicker degree under each public electrode voltages " including: receive each of camera head shooting
Some frame target picture under public electrode voltages；Each frame target picture under each public electrode voltages is divided into some
Individual sprite；Add up each sprite brightness value in described some frame target picture, and obtain the some of each sprite
Brightness value, and determine the maximum brightness value in some brightness values of each sprite and minimum luminance value；According to each sub-picture
Face maximum brightness value in described some frame target picture and minimum luminance value determine the viewing area that each sprite is corresponding
The flicker degree in territory；And determine described display floater according to the weight of each viewing area and the flicker degree of each viewing area
Integral panels flicker degree under each public electrode voltages.
Wherein, described step " is added up each sprite brightness value in described some frame target picture " and being included: obtain
The brightness value of all pixels in each sprite in each frame target picture, and all pixels to each sprite
Brightness value carry out cumulative and obtain the brightness value of the corresponding sprite in each frame target picture.
Wherein, described step is " according to each sprite maximum brightness value in described some frame target picture and
Little brightness value determines the flicker degree of the viewing area that each sprite is corresponding " including: according to formula F licker_P=(MAX_
Brightness-MIN_brightness)/Average_Brightness calculates the viewing area that each sprite is corresponding
Flicker degree Flicker_P, wherein, MAX_brightness is the maximum brightness value in some brightness values of corresponding sprite,
MIN_brightness is the minimum luminance value in some brightness values of corresponding sprite, Average_Brightness=
(MAX_brightness+MIN_brightness)/2。
Wherein, described step " determines described according to the weight of each viewing area and the flicker degree of each viewing area
Display floater integral panels flicker degree under each public electrode voltages " including: according to formula F licker_Y=i_11*
Flicker_P11+i_12*Flicker_P12+i_13*Flicker_P13+......+i_jk*Flicker_Pjk+
... i_ef*Flicker_Pef calculates integral panels flicker degree Flicker_Y of display floater, and wherein, i_jk is jth row
The weighted value of the viewing area of kth row, Flicker_Pjk is the flicker degree of the viewing area of jth row kth row, i_11+i_12+
I_13+.....+i_jk+......+i_ef=1, wherein, the size of the weighted value of each viewing area is according to display floater
Characteristic is configured.
The display floater of the present invention and display device, be determined by the minimum of the integral panels flicker degree of a display floater
Value, and whole public electrode voltages is adjusted to the magnitude of voltage that minimum integral panels flicker degree is corresponding, it will make whole aobvious
Show that the flicker degree of each viewing area of panel, all in preferred values, effectively suppresses image residue, owing to the present invention has only to execute
Add a public electrode voltages, it is not necessary to subregion applies different public electrode voltages, simplifies circuit structure, save circuit
This.
Accompanying drawing explanation
In order to be illustrated more clearly that embodiment of the present invention or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Other obvious mode of texturing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the flicker of display panel degree regulation equipment in an embodiment of the present invention.
Fig. 2 is the target picture schematic diagram that the display floater in an embodiment of the present invention shows.
Fig. 3 is the functional module of the processing means in the flicker of display panel degree regulation equipment in an embodiment of the present invention
Figure.
Fig. 4 is the subregion schematic diagram of the target picture in an embodiment of the present invention.
Fig. 5 is the relation curve schematic diagram of the flicker degree in an embodiment of the present invention and public electrode voltages.
Fig. 6 is the flow chart of the flicker of display panel degree control method in an embodiment of the present invention.
Fig. 7 is the sub-process figure of step S603 in the flicker of display panel degree control method in an embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole realities
Execute mode.Based on the embodiment in the present invention, those of ordinary skill in the art are institute under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Refer to Fig. 1, regulate equipment 100 (hereinafter referred to as: adjust for the flicker of display panel degree in an embodiment of the present invention
Joint equipment 100) structural representation.Described regulation equipment 100 includes camera head 1 and processing means 2.As it is shown in figure 1, one
In embodiment, described camera head 1 and processing means 2 can be independent two device, such as camera head 1 be video camera/
Photographing unit, described processing means 2 is the computer such as notebook computer, desktop computer.Camera head 1 can pass through with processing means 2
The wireless mode such as WIFI, bluetooth connects, or is connected by the wired mode such as USB data line, grid line.At another embodiment
In, described regulation equipment 100 is a whole set equipment, and such as mobile phone, notebook computer, panel computer etc., described camera head 1 is
The photographic head that regulation equipment 100 carries, described processing means 2 can be general central processor (CPU), microprocessor, single-chip microcomputer,
Digital signal processor, ASIC (application-specific integrated circuit,
ASIC), or one or more for control above scheme program perform integrated circuit.
Described camera head 1 is for entering target picture IM1 of display floater 200 display of a pending flicker degree regulation
Row shooting.
Seeing also Fig. 2, in one embodiment, described display floater 200 shows center register guide B1 and four
Drift angle register guide B2, the picture in the range of described four drift angle register guide B2 is described target picture IM1.Described camera head 1
By center register guide B1 and four drift angle register guide B2 described target picture IM1 focused and para-position finding a view.Such as,
Described camera head 1 overlapped by four drift angle register guide B2 that the corner of view-finder is shown with display floater 200 respectively and
With described target picture IM1 para-position, and described target picture IM1 is found a view.
In the present embodiment, described display floater 200 is applied in different public electrode voltages Vcom successively, described aobvious
Show that panel 200 shows multiframe target with default refresh rate (usually 60Hz) in the application time of each public electrode voltages
Picture IM1.Wherein, described different public electrode voltages Vcom is the value in the range of a public electrode voltages allowed, example
As for the value in 6-8V (volt).
Described camera head 1 uses the frame rate identical with the refresh rate of display floater 200 to carry out the same of target picture IM1
Step shooting, thus shoot multiframe target picture IM1 under each public electrode voltages Vcom applies.That is, at each public electrode
In the applying period of voltage Vcom, described camera head 1 is taken the photograph frame target picture IM1 at interval of 1/60 second beats and is shot multiframe mesh
Mark picture IM1.Such as, in the applying period that public electrode voltages Vcom is 6.1V, camera head 1 takes the photograph one at interval of 1/60 second beats
Frame target picture IM1 and shoot multiframe target picture IM.
In one embodiment, the flicker degree template pictures (flicker for 127 GTGs of described display floater 200 display
Pattern), i.e. under different public electrode voltages Vcom, display data sources is the most identical, the flicker degree of described 127 GTGs it is
Template pictures (flicker pattern).
Seeing also Fig. 3, for the functional block diagram of processing means 2, described processing means 2 includes that panel scintillation calculates
Unit 201 and optimal public electrode voltages computing unit 202.
Described panel scintillation computing unit 201 is for each public electrode voltages Vcom according to camera head 1 shooting
Multiframe target picture IM1 under Shi Jiaing calculates the described display floater 200 integral panels under each public electrode voltages Vcom
Flicker degree flicker_Y.
Seeing also Fig. 4, concrete, described panel scintillation computing unit 201 is to each public electrode voltages Vcom
Every frame target picture IM1 under Shi Jiaing carries out subregion and obtains multiple sprite P1, and described panel scintillation computing unit 201 is right
Each display surface corresponding for sprite P is drawn afterwards according to each sprite P1 brightness calculation in different frame target picture IM1
Flicker degree flicker_F of the viewing area 210 of plate 200, then according to the sudden strain of a muscle of all viewing areas 210 of display floater 200
Bright degree flicker_F determines integral panels flicker degree flicker_Y under each public electrode voltages.
Described optimal public electrode voltages computing unit 202 is used for determining that described display floater 200 is at each public electrode
Integral panels flicker degree flicker_Y minimum in integral panels flicker degree flicker_Y under voltage Vcom, and determine described
Public electrode voltages Vcom that minimum integral panels flicker degree flicker_Y is corresponding is optimal public electrode voltages value.
More specifically, as it is shown on figure 3, described panel scintillation computing unit 201 includes Image Acquisition subelement 21, image
Segmentation subelement 22, brightness calculation subelement 23 and flicker degree determine subelement 24.
In one embodiment, described Image Acquisition subelement 21 is for receiving each common electrical of camera head 1 shooting
Some frame target picture IM1 under pole tension Vcom.
As shown in Figure 4, described image division sub-unit 22 is for by each frame mesh under each public electrode voltages Vcom
Mark picture IM1 is divided into the sprite P of several a*b pixel as shown in Figure 4.Described target picture IM1 can be K*L
The picture of pixel, wherein K, L are significantly more than a, b, and in one embodiment, a=b=80, K can be 1920, and L can be 1080.
Wherein, the number of the sprite P shown in Fig. 4 does not represent the number of the sprite P of reality, the most schematic diagram.
Wherein, the picture in the range of each frame target picture IM1 is four drift angle register guide B2 of display floater 200 display
Face, in the range of sprite P that each frame target picture IM1 is partitioned into is corresponding four drift angle register guide B2 of display floater 200
Different viewing areas 210.
Described brightness calculation subelement 23 is for adding up bright in described some frame target picture IM1 of each sprite P
Angle value, and obtain some brightness values of each sprite P, and determine the high-high brightness in some brightness values of each sprite P
Value MAX_brightness and minimum luminance value MIN_brightness.
In one embodiment, each sub-picture during described brightness calculation subelement 23 obtains each frame target picture IM1
The brightness value of all pixels in the P of face, and the brightness value of all pixels of each sprite P is carried out cumulative and obtains every
The brightness value of the corresponding sprite P in one frame target picture IM1.
Concrete, illustrate as a example by one of them sprite P,Exist for described sprite P
The brightness of each pixel in the first frame target picture IM1 adds up the brightness value of the whole sprite P obtained,Brightness for the described sprite P each pixel in nth frame target picture IM1 adds up
The brightness value of the whole sprite P arrived.
Wherein, n is the pixel number of sprite P, and N is the frame number of target picture IM1 of camera head 1 shooting.Obviously,
When sprite P includes 80*80 pixel, described n=80*80=6400.
Described sprite P maximum brightness value in described some frame target picture IM1 Described sprite P is in described some frame target picture IM1
Minimum luminance value
Described flicker degree determine subelement 24 for according to each sprite P in described some frame target picture IM1
Maximum brightness value MAX_brightness and minimum luminance value MIN_brightness determine each display corresponding for sprite P
Flicker degree Flicker_P in region 210.
Concrete, described flicker degree determines that subelement 24 is according to formula F licker_P=(MAX_brightness-MIN_
Brightness)/Average_Brightness calculates the flicker degree of each viewing area 210 corresponding for sprite P
Flicker_P, wherein Average_Brightness=(MAX_brightness+MIN_brightness)/2.
Thus, for a certain viewing area 210, the flicker degree of described viewing area 210 is that corresponding sprite P is many
Maximum brightness value MAX_brightness of the multiple brightness values in frame target picture IM1 and minimum luminance value MIN_
Difference between brightness is divided by the mean flow rate of the described sprite P multiple brightness values in multiframe target picture IM1
It is worth to.
Described flicker degree determines subelement 24 and according to the weight of each viewing area 210 and each viewing area 210
Flicker degree determine the described display floater 200 integral panels flicker degree Flicker_Y under each public electrode voltages Vcom.
Concrete, described flicker degree determines that subelement 24 is according to formula F licker_Y=i_11*Flicker_P11+i_
12*Flicker_P12+i_13*Flicker_P13+......i_jk*Flicker_Pjk+......i_ef*Flicker_
Pef.Wherein, the number of described sprite P and corresponding viewing area 210 is e*f, and in formula, i_jk refers to jth row kth row
The weighted value of viewing area 210, Flicker_Pjk is the flicker degree of the viewing area 210 of jth row kth row, i_11+i_12+
I_13+.....+i_jk+......+i_ef=1.Wherein, the big I of the weighted value of each viewing area 210 is according to display surface
The characteristic of plate 200 is adjusted arranging.
Thus, after the multiple image under Image Acquisition subelement 21 have taken public electrode voltages Vcom, described
Image division sub-unit 22, brightness calculation subelement 23 and flicker degree determine that subelement 24 performs aforesaid function and obtains current
Integral panels flicker degree Flicker_Y under public electrode voltages Vcom.By changing public electrode voltages Vcom, image successively
Obtain subelement 21 and have taken the multiple image under different public electrode voltages Vcom, thus image division sub-unit 22, brightness
Computation subunit 23 and flicker degree determine that subelement 24 performs aforesaid function and obtains different public electrode voltages Vcom successively
Under integral panels flicker degree Flicker_Y.
As it was previously stated, described optimal public electrode voltages computing unit 202 determines the integral panels flicker degree of described minimum
Public electrode voltages Vcom corresponding for flicker_Y is optimal public electrode voltages value.
In one embodiment, described optimal public electrode voltages computing unit 202 and by described optimal public electrode electricity
Pressure value is sent to a voltage generating unit 300, so that it is described optimal common electrical that described voltage generating unit 300 produces size
The voltage of pole tension value is to the public electrode E1 of display floater 200.
Concrete, described voltage generating unit 300 is connected to the public of described processing means 2 and described display floater 200
Between electrode E1.Described voltage generating unit 300 according to the described optimal public electrode voltages value received by described display surface
The public electrode voltages of plate 200 is adjusted to described optimal public electrode voltages value.Wherein, described voltage generating unit 300 can be
Programmable voltage buffer 300, it is possible to receive the optimal public electrode voltages value of write and produce the public electrode of corresponding size
Voltage.
In some embodiments, described voltage generating unit 300 can be the parts in display floater 200.Real at another
Executing in mode, described voltage generating unit 300 can be the parts in described regulation equipment 100.In other embodiments, described
Voltage generating unit 300 can be independent of display floater 200 and the equipment of regulation equipment 10.
Wherein, described panel scintillation computing unit 201, optimal public electrode voltages computing unit 202, Image Acquisition
Unit 21, image division sub-unit 22, brightness calculation subelement 23 and flicker degree determine that subelement 24 etc. can be in processing means 2
Hardware circuit unit or burning in the programmed instruction of processing means 2.
See also Fig. 5, wherein, flicker degree Flicker_P of a viewing area 210 and this viewing area 210
Public electrode voltages Vcom in parabolic relation as shown in Figure 5.Wherein, flicker degree Flicker_P is longitudinal axis value Y, public
Electrode voltage Vcom is transverse axis value X.
As previously mentioned, it is assumed that target display picture IM1 has been divided into e*f=q sprite P, then display floater 200 also have and
Described sprite P e*f=q viewing area 210 one to one.For being positioned at the pass of the viewing area 210 of the 1st row the 1st row
It is that formula can be expressed as: Y=a1X2+ b1X+c1, can represent for being positioned at the relational expression of the viewing area 210 of the 1st row the 2nd row
Become: Y=a2X2+ b2X+c2...... can be expressed as the relational expression being positioned at the viewing area 210 of m row the n-th row: represents
Become: Y=aqX2+ bqX+cq, etc..
Flicker degree Flicker_P of multiple viewing areas is equivalent to parabolic equation with superposing of the relation curve of Vcom
Superposition, is expressed as: q*Y=(a1+a2+...+aq) X2+ (b1+b2...+bq) X+ (c1+c2...+cq), simplification can draw Y=
AX2+BX+C。
As it was previously stated, flicker degree Flicker_P that integral panels flicker degree Flicker_Y is each viewing area is with corresponding
The accumulated value of the product of weighted value, substantially still can be expressed as q*Y=(a1+a2+...+aq) X2+(b1+b2...+bq)X+(c1
+c2...+cq).It is to say, the most parabolically relation between Vcom and integral panels flicker degree Flicker_Y.
Therefore, in the present invention, by changing the value of public electrode voltages Vcom, it can be deduced that along the parabola shown in Fig. 5
Integral panels flicker degree Flicker_Y of change, by comparing the minimum drawn in multiple integral panels flicker degree Flicker_Y
Value, may infer that public electrode voltages Vcom now is optimal public electrode voltages.
Comprehensive anti-due to flicker degree Flicker_P that integral panels flicker degree Flicker_Y is each viewing area 210
Reflecting, minimum integral panels flicker degree Flicker_Y will make to be proper sudden strain of a muscle for whole display floater 200
Bright degree, the minimum flicker degree from each viewing area 210 will not differ too many.Therefore, whole public electrode voltages is adjusted to
The magnitude of voltage that minimum integral panels flicker degree Flicker_Y is corresponding, it will make each viewing area of whole display floater 200
The flicker degree in territory 210, all in preferred values, effectively suppresses image residue.Additionally, due to the present invention have only to apply one public
Electrode voltage, it is not necessary to subregion applies different public electrode voltages, simplifies circuit structure, saves circuit cost.
Wherein, in one embodiment, the general interval of public electrode voltages Vcom of described display floater 200 can
To pre-set, such as 6-8V, by increasing public electrode voltages Vcom at interval of 0.1V, and obtain each public electrode voltages
Integral panels flicker degree Flicker_Y corresponding for Vcom.May know that from the parabola shown in Fig. 5, integral panels flicker degree
Flicker_Y first can reduce along with the increase of public electrode voltages Vcom, then as the increase of public electrode voltages Vcom
And increase.Described parabolical trough is integral panels flicker degree Flicker_Y of minimum, corresponding public electrode voltages
Vcom is optimal public electrode voltages.
Wherein, in one embodiment, the change of public electrode voltages Vcom of described display floater 200 can be by write
In different public electrode voltages values extremely described programmable voltage buffer, and make the output of described programmable voltage buffer right
Answer public electrode voltages Vcom of size.
Refer to Fig. 6, for the flow chart of the flicker of display panel degree control method in an embodiment of the present invention.Described side
Method includes step:
The display floater 200 that one pending flicker degree is regulated by camera head 1 is aobvious under different public electrode voltages Vcom
Target picture IM1 shown carries out shooting multiframe target picture IM1 (S601) obtained under each public electrode voltages Vcom.Its
In, described display floater 200 shows with default refresh rate (usually 60Hz) in the application time of each public electrode voltages
Showing multiframe target picture IM1, described camera head 1 uses the frame rate identical with the refresh rate of display floater 200 to carry out target
The sync pulse jamming of picture IM1, and shoot multiframe target picture IM1 under each public electrode voltages Vcom applies.
Multiframe under each public electrode voltages Vcom that panel scintillation computing unit 201 shoots according to camera head 1
Target picture IM1 calculates the described display floater 200 integral panels flicker degree (S603) under each public electrode voltages Vcom.
Concrete, described panel scintillation computing unit 201 is to every frame target picture IM1 under the applying of each public electrode voltages Vcom
Carry out subregion and obtain multiple sprite P1, described panel scintillation computing unit 201 then according to each sprite P1 not
Brightness calculation in target picture IM1 at same frame draws the sudden strain of a muscle of the viewing area 210 of each display floater 200 corresponding for sprite P
Bright degree flicker_F, then determines each public affairs according to flicker degree flicker_F of all viewing areas 210 of display floater 200
Integral panels flicker degree flicker_Y under common electrode voltage.
Described optimal public electrode voltages computing unit 202 is used for determining that described display floater 200 is at each public electrode
Integral panels flicker degree flicker_Y minimum in integral panels flicker degree flicker_Y under voltage Vcom, and determine described
Public electrode voltages Vcom that minimum integral panels flicker degree flicker_Y is corresponding is optimal public electrode voltages value
(S605)。
Described optimal public electrode voltages value is also sent to a voltage by described optimal public electrode voltages computing unit 202
Generation unit 300, so that described voltage generating unit 300 produces voltage that size is described optimal public electrode voltages value extremely
The public electrode (S607) of display floater 200.
Thus, in the present invention, by applying a voltage with optimal public electrode voltages value to display floater 200
The overall flicker degree of display floater 200 can be regulated to preferably state by public electrode, it is not necessary to subregion applies different public affairs
Common electrode voltage, simplifies circuit structure and cost.
See also Fig. 7, for the sub-process figure of step S603 in an embodiment of the present invention.Wherein, described step
S603 specifically includes:
Image Acquisition subelement 21 receives the some frame targets under each public electrode voltages Vcom of camera head 1 shooting
Picture IM1 (S6031).
Each frame target picture IM1 under each public electrode voltages Vcom is divided into some by image division sub-unit 22
Individual sprite P (S6032).
Each sprite P brightness value in described some frame target picture IM1 added up by brightness calculation subelement 23, and obtains
To some brightness values of each sprite P, and determine maximum brightness value MAX_ in some brightness values of each sprite P
Brightness and minimum luminance value MIN_brightness (S6033).Concrete, brightness calculation subelement 23 adds up each
Sprite P brightness value in described some frame target picture IM1 includes: described brightness calculation subelement 23 obtains each frame target
The brightness value of all pixels in each sprite P in picture IM1, and bright to all pixels of each sprite P
Angle value carries out cumulative and obtains the brightness value of the corresponding sprite P in each frame target picture IM1.
Flicker degree determines that subelement 24 is according to each sprite P high-high brightness in described some frame target picture IM1
Value MAX_brightness and minimum luminance value MIN_brightness determine each viewing area 210 corresponding for sprite P
Flicker degree Flicker_P (S6034).Concrete, described flicker degree determines that subelement 24 is according to formula F licker_P=
(MAX_brightness-MIN_brightness)/Average_Brightness calculates corresponding the showing of each sprite P
Show flicker degree Flicker_P in region 210, wherein Average_Brightness=(MAX_brightness+MIN_
brightness)/2。
Flicker degree determines subelement 24 and according to the weight of each viewing area 210 and the sudden strain of a muscle of each viewing area 210
Bright degree determines the described display floater 200 integral panels flicker degree Flicker_Y under each public electrode voltages Vcom
(S6035).Concrete, described flicker degree determines that subelement 24 is according to formula F licker_Y=i_11*Flicker_P11+i_
12*Flicker_P12+i_13*Flicker_P13+......+i_jk*Flicker_Pjk+......i_ef*Flicker_
Pef calculates integral panels flicker degree Flicker_Y of display floater.Wherein, described sprite P and corresponding viewing area 210
Number is e*f, and in formula, i_jk refers to the weighted value of the viewing area 210 of jth row kth row, and Flicker_Pjk is jth
The flicker degree of the viewing area 210 of row kth row, i_11+i_12+i_13+.....+i_jk+......+i_ef=1.Wherein, respectively
The big I of the weighted value of individual viewing area 210 is adjusted arranging according to the characteristic of display floater 200.
Above disclosed be only one better embodiment of the present invention, certainly can not with this limit the present invention it
Interest field, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-mentioned embodiment, and Yi Benfa
The equivalent variations that bright claim is made, still falls within the scope that invention is contained.
Claims (10)
1. a flicker of display panel degree regulation equipment, for by being adjusted the public electrode voltages of a display floater
Regulate the flicker degree of described display floater, it is characterised in that described flicker of display panel degree regulation equipment includes:
Camera head, obtains for described display floater target picture of display under different public electrode voltages is carried out shooting
Multiframe target picture under each public electrode voltages；And
Processing means, including:
Panel scintillation computing unit, the multiframe target picture under each public electrode voltages according to camera head shooting
Calculate described display floater integral panels flicker degree under each public electrode voltages；And
Optimal public electrode voltages computing unit, for determining described display floater integral face under each public electrode voltages
Integral panels flicker degree minimum in plate flicker degree, and determine the public electrode electricity that the integral panels flicker degree of described minimum is corresponding
Pressure is optimal public electrode voltages value；Described optimal public electrode voltages computing unit is also used for described optimal public electrode electricity
Pressure value is sent to a voltage generating unit, so that it is described optimal public electrode voltages that described voltage generating unit produces size
The voltage of value is to the public electrode of display floater.
2. flicker of display panel degree regulation equipment as claimed in claim 1, it is characterised in that described panel scintillation calculates single
Unit includes:
Image Acquisition subelement, the some frame target picture under each public electrode voltages receiving camera head shooting；
Image division sub-unit, draws for each frame target picture under each public electrode voltages is divided into some height
Face；
Brightness calculation subelement, for adding up each sprite brightness value in described some frame target picture, and obtains every
Some brightness values of one sprite, and determine the maximum brightness value in some brightness values of each sprite and minimum brightness
Value；And
Flicker degree determines subelement, for according to each sprite maximum brightness value in described some frame target picture and
Minimum luminance value determines the flicker degree of the viewing area that each sprite is corresponding；And for and according to the power of each viewing area
The flicker degree of weight and each viewing area determines the integral panels flicker under each public electrode voltages of the described display floater
Degree.
3. flicker of display panel degree regulation equipment as claimed in claim 2, it is characterised in that described brightness calculation subelement is united
Count each sprite brightness value in described some frame target picture to include: described brightness calculation subelement obtains each frame mesh
The brightness value of all pixels in each sprite in mark picture, and the brightness value of all pixels to each sprite
Carry out cumulative and obtain the brightness value of the corresponding sprite in each frame target picture.
4. flicker of display panel degree regulation equipment as claimed in claim 2, it is characterised in that described flicker degree determines subelement
According to formula:
Flicker_P=(MAX_brightness-MIN_brightness)/Average_Brightness calculates each
Flicker degree Flicker_P of the viewing area that sprite is corresponding, wherein, MAX_brightness is the some bright of corresponding sprite
Maximum brightness value in angle value, MIN_brightness is the minimum luminance value in some brightness values of corresponding sprite,
Average_Brightness=(MAX_brightness+MIN_brightness)/2.
5. flicker of display panel degree regulation equipment as claimed in claim 2, it is characterised in that described flicker degree determines subelement
According to formula F licker_Y=i_11*Flicker_P11+i_12*Flicker_P12+i_13*Flicker_ P13+......+
I_jk*Flicker_Pjk+......i_ef*Flicker_Pef calculates integral panels flicker degree Flicker_Y of display floater,
Wherein, in formula, i_jk refers to the weighted value of the viewing area of jth row kth row, and Flicker_Pjk is the aobvious of jth row kth row
Show the flicker degree in region, i_11+i_12+i_13+.....+i_jk+......+i_ef=1, wherein, the power of each viewing area
The size of weight values is configured according to the characteristic of display floater.
6. a flicker of display panel degree control method, for by being adjusted the public electrode voltages of a display floater
Regulate the flicker degree of described display floater, it is characterised in that described method includes:
By camera head, described display floater target picture of display under different public electrode voltages is carried out shooting to obtain
Multiframe target picture under each public electrode voltages；
The multiframe target picture under each public electrode voltages according to camera head shooting calculates described display floater each
Integral panels flicker degree under public electrode voltages；
Determine integral panels flicker minimum in described display floater integral panels flicker degree under each public electrode voltages
Degree, and determine that public electrode voltages corresponding to the integral panels flicker degree of described minimum is optimal public electrode voltages value；And
Described optimal public electrode voltages value is sent to a voltage generating unit, so that described voltage generating unit produces big
The little voltage for described optimal public electrode voltages value is to the public electrode of display floater.
7. method as claimed in claim 6, it is characterised in that described step " each common electrical according to camera head shooting
Multiframe target picture under pole tension calculates described display floater integral panels flicker degree under each public electrode voltages " bag
Include:
Receive the some frame target picture under each public electrode voltages of camera head shooting；
Each frame target picture under each public electrode voltages is divided into several sprites；
Add up each sprite brightness value in described some frame target picture, and if obtaining the dry brightness of each sprite
Value, and determine the maximum brightness value in some brightness values of each sprite and minimum luminance value；
Each son is determined according to each sprite maximum brightness value in described some frame target picture and minimum luminance value
The flicker degree of the viewing area that picture is corresponding；And
Weight and the flicker degree of each viewing area according to each viewing area determine that described display floater is each public
Integral panels flicker degree under electrode voltage.
8. method as claimed in claim 7, it is characterised in that described step " adds up each sprite at described some frame mesh
Brightness value in mark picture " including:
Obtain the brightness value of all pixels in each sprite in each frame target picture, and the institute to each sprite
The brightness value having pixel carries out cumulative and obtains the brightness value of the corresponding sprite in each frame target picture.
9. method as claimed in claim 7, it is characterised in that described step is " according to each sprite at described some frame mesh
Maximum brightness value in mark picture and minimum luminance value determine the flicker degree of viewing area that each sprite is corresponding " including:
Calculate according to formula F licker_P=(MAX_brightness-MIN_brightness)/Average_Brightness
Drawing flicker degree Flicker_P of the viewing area that each sprite is corresponding, wherein, MAX_brightness is corresponding sprite
Some brightness values in maximum brightness value, MIN_brightness is the minimum brightness in some brightness values of corresponding sprite
Value, Average_Brightness=(MAX_brightness+MIN_brightness)/2.
10. method as claimed in claim 7, it is characterised in that described step is " according to the weight of each viewing area and each
The flicker degree of individual viewing area determines described display floater integral panels flicker degree under each public electrode voltages " including:
According to formula F licker_Y=i_11*Flicker_P11+i_12*Flicker_P12+i_13*Flicker_ P13
+ ...+i_jk*Flicker_Pjk+......i_ef*Flicker_Pef calculates the integral panels flicker degree of display floater
Flicker_Y, wherein, i_jk is the weighted value of the viewing area of jth row kth row, and Flicker_Pjk is the aobvious of jth row kth row
Show the flicker degree in region, i_11+i_12+i_13+.....+i_jk+......+i_ef=1, wherein, the power of each viewing area
The size of weight values is configured according to the characteristic of display floater.
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