CN104021751A - Method and device for reducing nonuniform blink of display screen, display screen and display device - Google Patents
Method and device for reducing nonuniform blink of display screen, display screen and display device Download PDFInfo
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Abstract
本发明公开了一种显示屏，包括阵列基板和驱动单元，所述阵列基板包括显示区，所述显示区包括多个区域；所述阵列基板还包括：存储器，用于存储每个区域的补偿电压；与所述存储器相连的控制器，获取预先存储在所述存储器里的所述每个区域的补偿电压，对被施加基础公共电压的公共电极线所在的区域内各条数据线施加相应的补偿电压。本发明能至少达到减少显示屏闪烁不均，提高显示效果的有益效果之一。
The invention discloses a display screen, which includes an array substrate and a drive unit, the array substrate includes a display area, and the display area includes a plurality of areas; the array substrate also includes: a memory for storing the compensation of each area voltage; the controller connected to the memory obtains the compensation voltage of each area pre-stored in the memory, and applies corresponding compensation voltage. The invention can at least achieve one of the beneficial effects of reducing uneven flickering of the display screen and improving display effect.
Description
Technical field
The present invention relates to display technique field, more particularly, relate to a kind of display screen glimmer uneven method and device, display screen and display device of reducing.
Background technology
TFT (Thin Film Transistor, Thin Film Transistor (TFT)) array base palte is one of important composition parts of existing display device.Drive each pixel by TFT, thereby make the advantages such as display device has at a high speed, high brightness, high-contrast.Have plurality of advantages although include the display device of tft array substrate, the display effect of existing display device has much room for improvement.
Summary of the invention
In view of this, the invention provides a kind of display screen glimmer uneven method and device, display screen and display device of reducing.
The invention provides a kind of display screen, comprise array base palte and driver element, described array base palte comprises viewing area, and described viewing area comprises multiple regions; Described array base palte also comprises: storer, for storing the bucking voltage in each region; With the controller that described storer is connected, obtain the bucking voltage in pre-stored described each region in described storer, apply corresponding bucking voltage to being applied in pieces of data line in the region at public electrode wire place of basic common electric voltage.
Accordingly, the present invention also provides a kind of display device, comprises display screen as above.
Accordingly, the present invention also provides a kind of display screen uneven device that glimmers that reduces, and is applied to display device, and described display device comprises display screen, and described display screen comprises array base palte, and described array base palte comprises viewing area, and described viewing area comprises multiple regions; The described reduction display screen uneven device that glimmers comprises: memory module, for storing the bucking voltage in described each region; And control module, obtains the bucking voltage in pre-stored described each region in described memory module, apply corresponding bucking voltage to being applied in pieces of data line in the region at public electrode wire place of basic common electric voltage.
Accordingly, the present invention also provides a kind of display screen uneven method of glimmering that reduces, and is applied to display screen, described display screen comprises array base palte, described array base palte comprises viewing area, and the described reduction display screen uneven method of glimmering comprises: subregion is carried out in described viewing area, form multiple regions; Obtain the bucking voltage in pre-stored described each region, apply respectively corresponding bucking voltage to being applied in pieces of data line in the region at public electrode wire place of basic common electric voltage.
Compared with prior art, technical scheme provided by the present invention at least one of has the following advantages:
Reduction display screen provided by the present invention glimmer uneven method and device, array base palte and display device, subregion is carried out in viewing area by the array base palte to display screen, and obtain in advance the bucking voltage in each region, in the time scanning arbitrary region while being applied in basic common electric voltage (that is public electrode wire in this arbitrary region), on original data voltage basis that is applied to data line, again the data line in the described region scanning is applied to corresponding bucking voltage in addition, so, the balanced voltage of the each position of public electrode wire, improve basic public voltage signal and postponed the unbalanced situation of the each position voltage of public electrode wire causing, improve the display screen uneven phenomenon of glimmering, improve the display effect of display device.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of glimmer process flow diagram of uneven method of display screen that reduces that Fig. 1 provides for the embodiment of the present application;
The structural representation of a kind of viewing area that Fig. 2 a provides for the embodiment of the present application;
The Flicker value curve map of a kind of surveying instrument that Fig. 2 b provides for the embodiment of the present application;
A kind of viewing area that Fig. 3 a provides for the embodiment of the present application comprises the schematic diagram on the first summit, the second summit and the 3rd summit;
The impartial subregion schematic diagram in left and right, a kind of viewing area that Fig. 3 b provides for the embodiment of the present application;
The unequal subregion schematic diagram in left and right, a kind of viewing area that Fig. 3 c provides for the embodiment of the present application;
The schematic diagram of the corresponding display screen of the first stepping algorithm that Fig. 4 a provides for the embodiment of the present application;
The schematic diagram of the corresponding display screen of the second stepping algorithm that Fig. 4 b provides for the embodiment of the present application;
The schematic diagram of the corresponding display screen of the third stepping algorithm that Fig. 4 c provides for the embodiment of the present application;
The schematic diagram of the 4th kind of corresponding display screen of stepping algorithm that Fig. 4 d provides for the embodiment of the present application;
A kind of glimmer structural representation of uneven device of display screen that reduces that Fig. 5 provides for the embodiment of the present application;
A kind of array base-plate structure schematic diagram that Fig. 6 provides for the embodiment of the present application.
Embodiment
As described in background, the display frame quality of existing display device has much room for improvement.Inventor studies discovery, cause the reason of this defect to mainly contain the gate line on tft array substrate, data line and public electrode wire all have impedance, and then at raster polar curve, when data line and public electrode wire, all there is delay, that is, when gate line is applied in gated sweep signal, on gate line, exist signal to postpone (gate delay), in like manner, when public electrode wire is applied in common electric voltage, on public electrode wire, exist public voltage signal to postpone (COM delay), public voltage signal postpones generally to make on public electrode wire the common electric voltage of each position variant, data line in each pixel region is applied in corresponding data voltage, and the flicker of each pixel region is to be determined by the difference of the common electric voltage in this pixel region and data voltage, so, in the time that the common electric voltage of diverse location on public electrode wire is variant, the pixel flicker of zones of different can be variant, so, produce the phenomenon of display screen flicker uneven (flicker inequality), so, display screen just likely occurs that regional area seriously glimmers, and there is affecting the phenomenon of display effect, for example local image retention, make user not feel well simultaneously, in other words, on public electrode wire, exist public voltage signal postpone (such as, public electrode wire signal delay ratio near IC place is little away from the delay at IC place, or the data line signal retardation ratio near IC place is little away from the delay at IC place), therefore the corresponding best common electric voltage of viewing area zones of different (under the picture that glimmers, flicker level is minimum) difference.And the common electric voltage of display screen only has one, can only compensate and reduce the flicker in a certain region, for other region, there is deviation in common electric voltage and best common electric voltage, and flicker can not get compensation.So the viewing area of display screen exists the inconsistent situation of zones of different flicker level, namely flicker is uneven.
Thus, inventor further research obtains, if one of them in common electric voltage and data voltage in pixel region compensated, can solve the display screen uneven problem of glimmering.
Inventor further studies and obtains, and adopts the better effects if that data line is compensated, and specifically describes as follows.
For object of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
A lot of details are set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, and therefore the present invention is not subject to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, in the time that the embodiment of the present invention is described in detail in detail; for ease of explanation; represent that the sectional view of device architecture can disobey general ratio and do local amplification, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.In addition in actual fabrication, should comprise, the three-dimensional space of length, width and the degree of depth.
The embodiment of the present application provides a kind of display screen uneven method of glimmering that reduces, as shown in Figure 1, a kind of the glimmer process flow diagram of uneven method of display screen that reduces providing for the embodiment of the present application, a kind of display screen uneven method of glimmering that reduces providing for the embodiment of the present application is applied to display screen, described display screen comprises array base palte, described array base palte comprises viewing area, wherein, reduces the display screen uneven method of glimmering and comprises step:
S1, subregion is carried out in described viewing area, form multiple regions;
The application is mainly by voltage compensation (the public electrode wire in region being carried out to voltage compensation) targetedly, to improve because public voltage signal postpones the scintillation causing, therefore first need display screen to carry out subregion, concrete, subregion is carried out in the viewing area that is the first array base palte to display screen, to form multiple regions.But, for the region of dividing number, and the size in each region, the application does not do concrete restriction to this, need to carry out specific design according to actual conditions, to reach optimum partition scheme.
S2, subregion is carried out in described viewing area, form multiple regions.
On array base palte, due to the delay of public voltage signal, so the public electrode wire delay of regional is also different in viewing area, therefore, the bucking voltage of the public electrode wire of regional is not identical yet.Therefore, need to determine the bucking voltage size of the public electrode wire in each region, so that in the time that display screen is worked, in the time scanning arbitrary region while being applied in basic common electric voltage (that is public electrode wire in this arbitrary region), on original data voltage basis that is applied to data line, then the data line in the described region scanning is applied to corresponding bucking voltage in addition.
The embodiment of the present application for one of definite mode of bucking voltage is:
The bucking voltage that the embodiment of the present application provides can deduct basic common electric voltage for the best common electric voltage in described each region;
Wherein, every public electrode wire has respectively first magnitude of voltage while flicker corresponding to described public electrode wire region, the best common electric voltage in described each region is the average of all the first magnitudes of voltage corresponding to described each region, in other words, because every public electrode wire has respectively first magnitude of voltage while not glimmering corresponding to described public electrode wire region, therefore, in a region, there are how many public electrode wires, just there are how many first magnitudes of voltage, again the first all magnitude of voltage in this region is averaged, the mean value obtaining is exactly the best common electric voltage in this region, for instance, as shown in Figure 2 a, viewing area 1 comprises multiple regions, in a region D, there are three public electrode wire L1, L2 and L3, measure in the time that region D does not glimmer, the first magnitude of voltage V that public electrode wire L1 is applied in
l1, measure in the time that region D does not glimmer the first magnitude of voltage V that public electrode wire L2 is applied in
l2, measure in the time that region D does not glimmer the first magnitude of voltage V that public electrode wire L3 is applied in
l3, then get V
l1, V
l2and V
l3average V
av, this average V
avthe best common electric voltage that is this region D (it should be noted that at this, the size of the region D giving an example in the present embodiment and accompanying drawing 2a, the quantity of the public electrode wire in the position of region D and region D is all for example and non-limiting, in real work, art technology rationally arranges according to the actual requirements).
As shown in the above, determine that the best common electric voltage in each region need to carry out actual measurement to the best common electric voltage in each region, optional, the embodiment of the present application provides a kind of method of the best common electric voltage by Flicker test zone, specifically comprises:
The Flicker measuring sonde of surveying instrument is positioned in the D of region, the any point that is positioned at region D on public electrode wire L1 in the D of region is as test point, that is this test point is positioned at region D, and monitor this test point with surveying instrument, the variation of the voltage being applied in along with the public electrode wire L1 at test point place, the Flicker value that surveying instrument detects by Flicker measuring sonde can be followed variation, in the time that Flicker value reaches the best (voltage now does not glimmer this test point place test zone), the magnitude of voltage monitoring when recording Flicker value and reaching the best, the magnitude of voltage that this Flicker value monitors while reaching the best is the first magnitude of voltage V of this public electrode wire L1
l1, with reference to figure 2a and Fig. 2 b, the Flicker value curve map of a kind of surveying instrument that Fig. 2 b provides for the embodiment of the present application, wherein, horizontal ordinate is the first magnitude of voltage that public electrode wire is applied, ordinate is Flicker value.In the time regulating the first magnitude of voltage, Flicker value can be followed variation, until in the time of Flicker value minimum (i.e. the point of N in Fig. 2 b), now corresponding voltage is the first magnitude of voltage of public electrode wire.
In like manner, then need to repeat above-mentioned measuring method remaining public electrode wire L2 and public electrode wire L3 in the D of region carried out respectively to Flicker test, and record in test zone D its public electrode wire L2 and public electrode wire L3,, then, then get V
l1, V
l2and V
l3average V
av, this average V
avbe the best common electric voltage of this region D.
Further, described basic common electric voltage is the best common electric voltage of central point region, described viewing area.This is while watching the display frame of display device due to people, mainly concentrate on the center of display screen, that is, mainly concentrate on the center of the viewing area of array base palte, therefore the embodiment of the present application is preferred, basis common electric voltage is best common electric voltage corresponding to display screen central point region, that is basic common electric voltage is the best common electric voltage of central point region, viewing area, again the data line in the region being scanned is applied to corresponding bucking voltage, therefore, the bucking voltage of region D is the best common electric voltage V of region D
avdeduct basic common electric voltage.So, improve the display screen uneven phenomenon of glimmering, improved the display effect of display screen and improved the display effect of display device.
Wherein, measuring sonde can be the Flicker measuring sonde of CA310 probe or other models, and the embodiment of the present invention is not done concrete restriction to this.
Method by the above-mentioned best common electric voltage that obtains each region is known, for the mode of bucking voltage corresponding to the above-mentioned definite each region providing of the embodiment of the present application, what region was divided is more meticulous, display effect for display device is better, preferably, region is a pixel region of display screen.
In addition, the application also provides another to determine the mode of the bucking voltage in each region: due to the delay of the public voltage signal on public electrode wire, and along with being gradual change away from the direction of driver element, that is, more away from driver element, the delay of public voltage signal is more serious, and the input control apparatus of bucking voltage is to have stepped voltage, therefore, as shown in Figure 3 a, the embodiment of the present application can be divided into viewing area m*n region, wherein
In a first direction by (V
1-V
2)/V
4divide, result is entered a round numbers and is obtained m; And,
In second direction, press (V
2-V
3)/V
4divide, result is entered a round numbers and is obtained n;
Described viewing area 1 comprises the first summit a, the second summit b and the 3rd summit c, and the line of described the first summit a and the second summit b forms and is parallel to first direction, and the line of described the second summit b and the 3rd summit c is parallel to second direction; V
1it is the best common electric voltage of the first a region, summit A; V
2it is the best common electric voltage of the second b region, summit B; V
3it is the best common electric voltage of the 3rd c region, summit C; V
1>V
2, V
2>V
3, V
4for stepped voltage.
Along described first direction, between adjacent two corresponding bucking voltages in region, differ V
4;
Along described second direction, between adjacent two corresponding bucking voltages in region, differ V
4.
In foregoing, V
1, V
2and V
3obtain and can adopt equally surveying instrument to measure, Flicker measuring sonde by surveying instrument is surveyed Flicker value, the magnitude of voltage applying while public electrode wire being carried out to voltage compensation to obtain in the time reaching best Flicker value, the method is identical with the method for above-mentioned a kind of best common electric voltage by Flicker test zone of mentioning, and the present embodiment does not repeat them here.That is V
1, V
2and V
3all can be obtained by the method for above-mentioned a kind of best common electric voltage by Flicker test zone of mentioning, the present embodiment no longer specifically describes at this.
Concrete, according to the partitioned mode in an above-mentioned m*n region, V
xfor the bucking voltage in any one region, the bucking voltage in m*n region can be:
Described region from the distance of described driver element the projected length in second direction be greater than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is greater than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝V
4*K2+V
4*K1； (1)，
That is to say, illustrate, as shown in Fig. 4 a:
Described region X is the projected length D in second direction from the distance of described driver element U
x2be greater than described viewing area center point P from the distance of described driver element U the projected length D in second direction
p2, and described region X is from the distance of described driver element U projected length D in a first direction
x1be greater than described viewing area center point P from the distance of described driver element U projected length D in a first direction
p1, the bucking voltage V of region X
xmeet: V
x=V
4* K2+V
4* K1, K2 increases by 1 on the basis of the region quantity at interval in second direction in described region and described display screen central point region, K1 increases by 1 on the basis of the region quantity at interval in a first direction in described region and described display screen central point region, in the present embodiment, and K2=3+1=4, K1=1+1=2, conventionally, stepped voltage V4 is 0.0125V, but is not limited to this, therefore, the bucking voltage V of region X
x=0.0125*4+0.0125*2=0.0125*6V, need explanation but, the present embodiment does not do any restriction to the position of driver element U, the position of the driver element U in Fig. 4 a is only for for example non-limiting.
Or, in other embodiments, described region from the distance of described driver element the projected length in second direction be less than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is greater than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝-V
4*K2+V
4*K1 (2)，
That is to say, illustrate, as shown in Figure 4 b:
Described region X is the projected length D in second direction from the distance of described driver element U
x2be less than described viewing area center point P from the distance of described driver element U the projected length D in second direction
p2, and described region X is from the distance of described driver element U projected length D in a first direction
x1be greater than described viewing area center point P from the distance of described driver element U projected length D in a first direction
p1, the bucking voltage V of region X
xmeet: V
x=-V
4* K2+V
4* K1, K2 increases by 1 on the basis of the region quantity at interval in second direction in described region and described display screen central point region, K1 increases by 1 on the basis of the region quantity at interval in a first direction in described region and described display screen central point region, in the present embodiment, and K2=3+1=4, K1=1+1=2, conventionally, stepped voltage V4 is 0.0125V, but is not limited to this, therefore, the bucking voltage V of region X
x=-0.0125*4+0.0125*2=-0.0125*2V, need explanation but, the present embodiment does not do any restriction to the position of driver element U, the position of the driver element U in Fig. 4 b is only for for example non-limiting.
Or, in other embodiments, described region from the distance of described driver element the projected length in second direction be greater than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is less than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝V
4*K2-V
4*K1 (3)，
That is to say, illustrate, as shown in Fig. 4 c:
Described region X is the projected length D in second direction from the distance of described driver element U
x2be greater than described viewing area center point P from the distance of described driver element U the projected length D in second direction
p2, and described region X is from the distance of described driver element U projected length D in a first direction
x1be less than described viewing area center point P from the distance of described driver element U projected length D in a first direction
p1, the bucking voltage V of region X
xmeet: V
x=V
4* K2-V
4* K1, K2 increases by 1 on the basis of the region quantity at interval in second direction in described region and described display screen central point region, K1 increases by 1 on the basis of the region quantity at interval in a first direction in described region and described display screen central point region, in the present embodiment, and K2=3+1=4, K1=1+1=2, conventionally, stepped voltage V4 is 0.0125V, but is not limited to this, therefore, the bucking voltage V of region X
x=0.0125*4-0.0125*2=0.0125*2V, need explanation but, the present embodiment does not do any restriction to the position of driver element U, the position of the driver element U in Fig. 4 c is only for for example non-limiting.
Or, in other embodiments, described region from the distance of described driver element the projected length in second direction be less than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is less than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝-V
4*K2-V
4*K1 (4)，
That is to say, illustrate, as shown in Fig. 4 d: as described in region X from as described in the distance of the driver element U projected length D in second direction
x2be greater than described viewing area center point P from the distance of described driver element U the projected length D in second direction
p2, and described region X is from the distance of described driver element U projected length D in a first direction
x1be greater than described viewing area center point P from the distance of described driver element U projected length D in a first direction
p1, the bucking voltage V of region X
xmeet: V
x=-V
4* K2-V
4* K1, K2 increases by 1 on the basis of the region quantity at interval in second direction in described region and described display screen central point region, K1 increases by 1 on the basis of the region quantity at interval in a first direction in described region and described display screen central point region, in the present embodiment, and K2=3+1=4, K1=1+1=2, conventionally, stepped voltage V4 is 0.0125V, but is not limited to this, therefore, the bucking voltage V of region X
x=-0.0125*4-0.0125*2=-0.0125*2V, need explanation but, the present embodiment does not do any restriction to the position of driver element U, the position of the driver element U in Fig. 4 c is only for for example non-limiting.
It should be noted that, the application is not limited to above-mentioned two kinds of modes for the bucking voltage of regional definite, in other embodiment of the application, can also be other modes, only need to meet the public electrode wire that first calculates the region being scanned, then data line is applied to corresponding bucking voltage, like this, can improve the scintillation that is postponed the display screen causing by the public voltage signal of public electrode wire, thereby improve the display effect of display device.
Accordingly, the embodiment of the present application also provides a kind of display screen uneven device that glimmers that reduces, and is applied to display device, described display device comprises display screen, described display screen comprises array base palte, and described array base palte comprises viewing area, and described viewing area comprises multiple regions;
Shown in figure 5, be a kind of glimmer structural representation of uneven device of display screen that reduces that the embodiment of the present application provides, reduce the display screen uneven device that glimmers and comprise:
Memory module 41, for storing the bucking voltage in described each region;
First determine the bucking voltage in each region, i.e. in the time scanning region while being applied in basic common electric voltage (that is public electrode wire in this region), on original data voltage basis that is applied to data line, again the data line in the described region scanning is applied to corresponding bucking voltage in addition, improve this region that postpones to cause due to public voltage signal and obtain scintillation.Then by working as while scanning arbitrary region while being applied in basic common electric voltage (that is public electrode wire in this arbitrary region), on original data voltage basis that is applied to data line, again the data line in the described region scanning is applied to corresponding bucking voltage in addition, typing memory module 41, to store the bucking voltage in each region.
And control module 42, obtains the bucking voltage in pre-stored described each region in described memory module, apply corresponding bucking voltage to being applied in pieces of data line in the region at public electrode wire place of basic common electric voltage.
Concrete, in the time scanning a certain region while being applied in basic common electric voltage (that is public electrode wire in this region), on original data voltage basis that is applied to data line, again the data line in the described region scanning is applied to corresponding bucking voltage in addition, then scan next public electrode wire, control module is determined the bucking voltage in the region at this public electrode wire place again, and according to bucking voltage, data line is applied to corresponding bucking voltage; The like, by the data line in the region scanning is applied to bucking voltage, with the voltage of the each position of balanced public electrode wire, change display screen scintillation.
Accordingly, the embodiment of the present application also provides a kind of display screen (not indicating), as shown in Figure 6, a kind of array base-plate structure schematic diagram providing for the embodiment of the present application, display screen comprises array base palte 2 and the single U of driving unit, described array base palte 2 comprises viewing area 1, and described viewing area 1 comprises multiple region X;
Conventionally, driver element U is positioned at the non-display area of array base palte 2, but in the embodiment of the present invention and Fig. 6, the position of driver element U is only for giving an example, and non-limiting, the application does not do any restriction to this;
Array base palte 2 also comprises:
Storer 56, for storing the bucking voltage in each region;
The controller 57 being connected with described storer 56, obtain the bucking voltage in pre-stored described each region 56 li of described storeies, apply corresponding bucking voltage to being applied in pieces of data line (not shown) in the region at public electrode wire place of basic common electric voltage, wherein, data line is electrically connected on controller 57 and driver element U, controller 57 is for data line being applied to the corresponding bucking voltage of regional, and driver element U is for applying data-signal to data line).
It should be noted that, in the present embodiment, storer 56 and controller 57 can be used as independently equipment and are arranged on array base palte 2, and this is only for non-limiting for example, and the present embodiment does not limit this.In other embodiments, also storer and/or controller can be integrated in driver element U.In addition, in other embodiments, array base palte can also comprise flexible circuit board (FPC), also storer and/or controller can be integrated in flexible circuit board, and the present embodiment does not limit this.
Concrete, the bucking voltage that the embodiment of the present application provides can deduct basic common electric voltage for the best common electric voltage in described each region;
Wherein, every public electrode wire has respectively first magnitude of voltage while flicker corresponding to described public electrode wire region, the best common electric voltage in described each region is the average of all the first magnitudes of voltage corresponding to described each region, in other words, because every public electrode wire has respectively first magnitude of voltage while not glimmering corresponding to described public electrode wire region, therefore, in a region, there are how many public electrode wires, just there are how many first magnitudes of voltage, again the first all magnitude of voltage in this region is averaged, the mean value obtaining is exactly the best common electric voltage in this region, for instance, as shown in Figure 2 a, viewing area 1 comprises multiple regions, in a region D, there are three public electrode wire L1, L2 and L3, measure in the time that region D does not glimmer, the first magnitude of voltage V that public electrode wire L1 is applied in
l1, measure in the time that region D does not glimmer the first magnitude of voltage V that public electrode wire L2 is applied in
l2, measure in the time that region D does not glimmer the first magnitude of voltage V that public electrode wire L3 is applied in
l3, then get V
l1, V
l2and V
l3average V
av, this average V
avthe best common electric voltage that is this region D (it should be noted that at this, the size of the region D giving an example in the present embodiment and accompanying drawing 2a, the quantity of the public electrode wire in the position of region D and region D is all for example and non-limiting, in real work, art technology rationally arranges according to the actual requirements).
As shown in the above, determine that the best common electric voltage in each region need to carry out actual measurement to the best common electric voltage in each region, optional, can test to obtain by Flicker the best common electric voltage in region, specifically comprise:
The Flicker measuring sonde of surveying instrument is positioned in the D of region, the any point that is positioned at region D on public electrode wire L1 in the D of region is as test point, that is this test point is positioned at region D, and monitor this test point with surveying instrument, the variation of the voltage being applied in along with the public electrode wire L1 at test point place, the Flicker value that surveying instrument detects by Flicker measuring sonde can be followed variation, in the time that Flicker value reaches the best (voltage now does not glimmer this test point place test zone), the magnitude of voltage monitoring when recording Flicker value and reaching the best, the magnitude of voltage that this Flicker value monitors while reaching the best is the first magnitude of voltage V of this public electrode wire L1
l1, with reference to figure 2a and Fig. 2 b, the Flicker value curve map of a kind of surveying instrument that Fig. 2 b provides for the embodiment of the present application, wherein, horizontal ordinate is the first magnitude of voltage that public electrode wire is applied, ordinate is Flicker value.In the time regulating the first magnitude of voltage, Flicker value can be followed variation, until in the time of Flicker value minimum (i.e. the point of N in Fig. 2 b), now corresponding voltage is the first magnitude of voltage of public electrode wire.
In like manner, then need to repeat above-mentioned measuring method remaining public electrode wire L2 and public electrode wire L3 in the D of region carried out respectively to Flicker test, and record in test zone D its public electrode wire L2 and public electrode wire L3,, then, then get V
l1, V
l2and V
l3average V
av, this average V
avbe the best common electric voltage of this region D.
Further, described basic common electric voltage is the best common electric voltage of central point region, described viewing area.This is while watching the display frame of display device due to people, mainly concentrate on the center of display screen, that is, mainly concentrate on the center of the viewing area of array base palte, therefore the embodiment of the present application is preferred, basis common electric voltage is best common electric voltage corresponding to display screen central point region, that is basic common electric voltage is the best common electric voltage of central point region, viewing area, again the data line in the region being scanned is applied to corresponding bucking voltage, therefore, the bucking voltage of region D is the best common electric voltage V of region D
avdeduct basic common electric voltage.So, improve the display screen uneven phenomenon of glimmering, improved the display effect of display screen and improved the display effect of display device.
Wherein, measuring sonde can be the Flicker measuring sonde of CA310 probe or other models, and the embodiment of the present invention is not done concrete restriction to this.
In the present embodiment, what region was divided is more meticulous, and better for the display effect of display device, preferred, a region is a pixel region of display screen.
In addition, the bucking voltage in each region of the viewing area of the embodiment of the present application, can also determine by another kind of mode:
Due to the delay of the public voltage signal on public electrode wire, along with being gradual change away from the direction of driver element, that is more away from driver element, the delay of public voltage signal is more serious, and the input control apparatus of bucking voltage is to have stepped voltage, therefore, as shown in Figure 3 a, the viewing area 1 of the embodiment of the present application comprises m*n region, wherein
In a first direction by (V
1-V
2)/V
4divide, result is entered a round numbers and is obtained m; And,
In second direction, press (V
2-V
3)/V
4divide, result is entered a round numbers and is obtained n;
Described viewing area 1 comprises the first summit a, the second summit b and the 3rd summit c, and the line of described the first summit a and the second summit b forms and is parallel to first direction, and the line of described the second summit b and the 3rd summit c is parallel to second direction; V
1it is the best common electric voltage of the first a region, summit A; V
2it is the best common electric voltage of the second b region, summit B; V
3the best common electric voltage that is the 3rd c region, summit C (it should be noted that, in the present embodiment and Fig. 3 a, the position of the first summit a, the second summit b and the 3rd summit c is only for non-limiting for example, in real work, as long as get any three summits in Si Ge summit, viewing area); V
1>V
2, V
2>V
3, V
4for stepped voltage.
Further, can adopt impartial subregion to the right and left region of viewing area, that is, as shown in Figure 3 b, such as, the left area L of viewing area is divided into 4 parts in second direction, is respectively: R
l1, R
l2, R
l3and R
l4; And region, the right R of viewing area is also divided into 4 parts in second direction, be respectively: R
r1, R
r2, R
r3and R
r4;
Or, can adopt unequal subregion to the right and left of viewing area, that is, as shown in Figure 3 c, such as, the left area L of viewing area is divided into 4 parts in second direction, is respectively: R
l1, R
l2, R
l3and R
l4, and region, the right R of viewing area is divided into 3 parts in second direction, be respectively: R
r1, R
r2and R
r3, the embodiment of the present invention adopts impartial subregion or the right and left of viewing area to adopt unequal subregion not do any restriction to the right and left region of viewing area, in the time that the right and left of viewing area adopts unequal subregion, can adopt the two the lowest common multiple conduct of the equal dosis refracta of left area L in second direction and the equal dosis refracta of region, the right R in second direction, for example, in this enforcement, adopt 4 and 3 lowest common multiple 12 as public division umber (as shown in Fig. 3 c, on line number is divided, public division umber is 12, be to be on average divided into 12 row), to guarantee to divide, the umber about viewing area is identical afterwards.
Further, along described first direction, between adjacent two corresponding bucking voltages in region, differ V
4; Along described second direction, between adjacent two corresponding bucking voltages in region, differ V
4.
In foregoing, V
1, V
2and V
3obtain and can adopt equally surveying instrument to measure, Flicker measuring sonde by surveying instrument is surveyed Flicker value, the magnitude of voltage applying while public electrode wire being carried out to voltage compensation to obtain in the time reaching best Flicker value, the method is identical with the method for above-mentioned a kind of best common electric voltage by Flicker test zone of mentioning, and the present embodiment does not repeat them here.That is V
1, V
2and V
3all can be obtained by the method for above-mentioned a kind of best common electric voltage by Flicker test zone of mentioning, the present embodiment no longer specifically describes at this.
Concrete, according to the partitioned mode in an above-mentioned m*n region, V
xfor the bucking voltage in any one region, the bucking voltage in m*n region can be:
Described region from the distance of described driver element the projected length in second direction be greater than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is greater than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝V
4*K2+V
4*K1； (1)，
That is to say, illustrate, as shown in Fig. 4 a:
Described region X is the projected length D in second direction from the distance of described driver element U
x2be greater than described viewing area center point P from the distance of described driver element U the projected length D in second direction
p2, and described region X is from the distance of described driver element U projected length D in a first direction
x1be greater than described viewing area center point P from the distance of described driver element U projected length D in a first direction
p1, the bucking voltage V of region X
xmeet: V
x=V
4* K2+V
4* K1, K2 increases by 1 on the basis of the region quantity at interval in second direction in described region and described display screen central point region, K1 increases by 1 on the basis of the region quantity at interval in a first direction in described region and described display screen central point region, in the present embodiment, and K2=3+1=4, K1=1+1=2, conventionally, stepped voltage V4 is 0.0125V, but is not limited to this, therefore, the bucking voltage V of region X
x=0.0125*4+0.0125*2=0.0125*6V, need explanation but, the present embodiment does not do any restriction to the position of driver element U, the position of the driver element U in Fig. 4 a is only for for example non-limiting.
Or, in other embodiments, described region from the distance of described driver element the projected length in second direction be less than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is greater than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝-V
4*K2+V
4*K1 (2)，
That is to say, illustrate, as shown in Figure 4 b:
Described region X is the projected length D in second direction from the distance of described driver element U
x2be less than described viewing area center point P from the distance of described driver element U the projected length D in second direction
p2, and described region X is from the distance of described driver element U projected length D in a first direction
x1be greater than described viewing area center point P from the distance of described driver element U projected length D in a first direction
p1, the bucking voltage V of region X
xmeet: V
x=-V
4* K2+V
4* K1, K2 increases by 1 on the basis of the region quantity at interval in second direction in described region and described display screen central point region, K1 increases by 1 on the basis of the region quantity at interval in a first direction in described region and described display screen central point region, in the present embodiment, and K2=3+1=4, K1=1+1=2, conventionally, stepped voltage V4 is 0.0125V, but is not limited to this, therefore, the bucking voltage V of region X
x=-0.0125*4+0.0125*2=-0.0125*2V, need explanation but, the present embodiment does not do any restriction to the position of driver element U, the position of the driver element U in Fig. 4 b is only for for example non-limiting.
Or, in other embodiments, described region from the distance of described driver element the projected length in second direction be greater than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is less than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝V
4*K2-V
4*K1 (3)，
That is to say, illustrate, as shown in Fig. 4 c:
Described region X is the projected length D in second direction from the distance of described driver element U
x2be greater than described viewing area center point P from the distance of described driver element U the projected length D in second direction
p2, and described region X is from the distance of described driver element U projected length D in a first direction
x1be less than described viewing area center point P from the distance of described driver element U projected length D in a first direction
p1, the bucking voltage V of region X
xmeet: V
x=V
4* K2-V
4* K1, K2 increases by 1 on the basis of the region quantity at interval in second direction in described region and described display screen central point region, K1 increases by 1 on the basis of the region quantity at interval in a first direction in described region and described display screen central point region, in the present embodiment, and K2=3+1=4, K1=1+1=2, conventionally, stepped voltage V4 is 0.0125V, but is not limited to this, therefore, the bucking voltage V of region X
x=0.0125*4-0.0125*2=0.0125*2V, need explanation but, the present embodiment does not do any restriction to the position of driver element U, the position of the driver element U in Fig. 4 c is only for for example non-limiting.
Or, in other embodiments, described region from the distance of described driver element the projected length in second direction be less than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is less than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝-V
4*K2-V
4*K1 (4)，
That is to say, illustrate, as shown in Fig. 4 d:
Described region X is the projected length D in second direction from the distance of described driver element U
x2be greater than described viewing area center point P from the distance of described driver element U the projected length D in second direction
p2, and described region X is from the distance of described driver element U projected length D in a first direction
x1be greater than described viewing area center point P from the distance of described driver element U projected length D in a first direction
p1, the bucking voltage V of region X
xmeet: V
x=-V
4* K2-V
4* K1, K2 increases by 1 on the basis of the region quantity at interval in second direction in described region and described display screen central point region, K1 increases by 1 on the basis of the region quantity at interval in a first direction in described region and described display screen central point region, in the present embodiment, and K2=3+1=4, K1=1+1=2, conventionally, stepped voltage V4 is 0.0125V, but is not limited to this, therefore, the bucking voltage V of region X
x=-0.0125*4-0.0125*2=-0.0125*2V; Need explanation but, the present embodiment does not do any restriction to the position of driver element U, the position of the driver element U in Fig. 4 c is only for for example non-limiting.
The display screen that this enforcement provides, subregion is carried out in viewing area by the array base palte to display screen, and obtain in advance the bucking voltage in each region, in the time scanning arbitrary region while being applied in basic common electric voltage (that is public electrode wire in this arbitrary region), on original data voltage basis that is applied to data line, again the data line in the described region scanning is applied to corresponding bucking voltage in addition, so, the balanced voltage of the each position of public electrode wire, improve basic public voltage signal and postponed the unbalanced situation of the each position voltage of public electrode wire causing, improve the display screen uneven phenomenon of glimmering, improve the display effect of display device.
And because the application adopts data line to compensate (bucking voltage that the voltage of compensation is each region), but not directly public electrode wire is compensated; And to therefore, zoning can be to divide sidewards, can be also endways division; If directly common electrical is compensated, because gate line once must be opened all pixels of a line, therefore zoning can only endwaysly be divided, and can not divide sidewards.And, if the words that directly common electrical compensated, its compensation effect is also not as adopting effective that data line is compensated, that be because, the current potential that common electrical is carried out can causing imposing on to the common electric voltage (COM voltage) of common electrical stirs back and forth, making public voltage signal is AC signal (forming AC-COM), but not direct current signal, so, can increase power consumption, and feed-trough voltage (Feedback) is also not easy to regulate, just can address the above problem and adopt data line to compensate, make compensation effect better, can not increase power consumption yet, feed-trough voltage (Feedback) also easily regulates.
In another kind of embodiment, also can pop one's head in direct detection to the best common electric voltage in each region by flicker, then, the corresponding common potential (being the best common electric voltage of central point region, viewing area) that deducts display screen again, obtain the bucking voltage in each region, again the bucking voltage in each region is burnt in the IC of display screen, so, this kind of method is the bucking voltage that obtains each region by actual measurement, then do corresponding compensation according to measured result, can further make up difference that technological fluctuation causes that is, different display screens can have the difference that technological fluctuation causes, the present embodiment can obtain corresponding bucking voltage by actual measurement, can survey respectively every display screen, obtain the bucking voltage in each region of every display screen, so make up the difference that technological fluctuation causes.
Last the embodiment of the present application also provides a kind of display device, comprises above-mentioned any display screen.Display device can be liquid crystal indicator (LCD), also can be organic light-emitting display device (OLED) etc., and the present embodiment is not done concrete restriction to this.
Reduction display screen provided by the present invention glimmer uneven method and device, array base palte and display device, subregion is carried out in viewing area by the array base palte to display screen, and obtain in advance the bucking voltage in each region, in the time scanning arbitrary region while being applied in basic common electric voltage (that is public electrode wire in this arbitrary region), on original data voltage basis that is applied to data line, again the data line in the described region scanning is applied to corresponding bucking voltage in addition, so, the balanced voltage of the each position of public electrode wire, improve basic public voltage signal and postponed the unbalanced situation of the each position voltage of public electrode wire causing, improve the phenomenon of display screen flicker uneven (flicker inequality), improve the display effect of display device.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (11)
1. a display screen, comprises array base palte and driver element, and described array base palte comprises viewing area, and described viewing area comprises multiple regions;
Described array base palte also comprises:
Storer, for storing the bucking voltage in each region;
With the controller that described storer is connected, obtain the bucking voltage in pre-stored described each region in described storer, apply corresponding bucking voltage to being applied in pieces of data line in the region at public electrode wire place of basic common electric voltage.
2. display screen according to claim 1, is characterized in that,
The bucking voltage in described each region is that the best common electric voltage in described each region deducts basic common electric voltage;
Every public electrode wire has respectively first magnitude of voltage while flicker corresponding to described public electrode wire region, and the best common electric voltage in described each region is the average of all the first magnitudes of voltage corresponding to described each region.
3. display screen according to claim 2, is characterized in that, described basic common electric voltage is the best common electric voltage of central point region, described viewing area.
4. display screen according to claim 2, is characterized in that, described viewing area comprises m*n region, wherein,
In a first direction by (V
1-V
2)/V
4divide, it is described m that result is entered a round numbers; And,
In second direction, press (V
2-V
3)/V
4divide, it is described n that result is entered a round numbers;
Wherein, described viewing area comprises the first summit, the second summit and the 3rd summit, and the line on described the first summit and the second summit forms and is parallel to first direction, and the line on described the second summit and the 3rd summit is parallel to second direction; V
1it is the best common electric voltage of the first region, summit; V
2it is the best common electric voltage of the second region, summit; V
3be the best common electric voltage of the 3rd region, summit, V
1>V
2, V
2>V
3, V
4for stepped voltage.
5. display screen according to claim 4, is characterized in that,
Along described first direction, between adjacent two corresponding bucking voltages in region, differ V
4;
Along described second direction, between adjacent two corresponding bucking voltages in region, differ V
4.
6. display screen according to claim 5, is characterized in that,
Described region from the distance of described driver element the projected length in second direction be greater than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is greater than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝V
4*K2+V
4*K1； (1)，
Or, described region from the distance of described driver element the projected length in second direction be less than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is greater than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝V
4*K2+V
4*K1 (2)，
Or, described region from the distance of described driver element the projected length in second direction be greater than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is less than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝V
4*K2-V
4*K1 (3)，
Or, described region from the distance of described driver element the projected length in second direction be less than described viewing area central point from the distance of described driver element the projected length in second direction, and described region is less than described viewing area central point from the distance of described driver element projected length in a first direction from the distance of described driver element projected length in a first direction, meets:
V
x＝-V
4*K2-V
4*K1 (4)，
Wherein, V
xfor the bucking voltage in any one region, K2 increases by 1, K1 on the basis of the region quantity at interval, to increase by 1 in a first direction in described region and described display screen central point region on the basis of the region quantity at interval in second direction in described region and described display screen central point region.
7. according to the display screen described in any one in claim 1-6, it is characterized in that, described storer and/or described controller are integrated in described driver element.
8. according to the display screen described in any one in claim 1-6, it is characterized in that, described array base palte also comprises flexible PCB, and described storer and/or described controller are integrated in described flexible PCB.
9. a display device, comprises the display screen as described in any one in claim 1-8.
10. reduce the display screen uneven device that glimmers, be applied to display device, described display device comprises display screen, and described display screen comprises array base palte, and described array base palte comprises viewing area, and described viewing area comprises multiple regions; The described reduction display screen uneven device that glimmers comprises:
Memory module, for storing the bucking voltage in described each region; And,
Control module, obtains the bucking voltage in pre-stored described each region in described memory module, applies corresponding bucking voltage to being applied in pieces of data line in the region at public electrode wire place of basic common electric voltage.
11. 1 kinds are reduced the display screen uneven method of glimmering, and are applied to display screen, and described display screen comprises array base palte, and described array base palte comprises viewing area, and the described reduction display screen uneven method of glimmering comprises:
Subregion is carried out in described viewing area, form multiple regions;
Obtain the bucking voltage in pre-stored described each region, apply respectively corresponding bucking voltage to being applied in pieces of data line in the region at public electrode wire place of basic common electric voltage.
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