CN108877715A - Display panel and its compensation making method, driving method - Google Patents
Display panel and its compensation making method, driving method Download PDFInfo
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- CN108877715A CN108877715A CN201810795032.3A CN201810795032A CN108877715A CN 108877715 A CN108877715 A CN 108877715A CN 201810795032 A CN201810795032 A CN 201810795032A CN 108877715 A CN108877715 A CN 108877715A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention provides a kind of display panel and its compensation making method, driving method, belongs to the not long technical field of display, can at least partly solve the problem of the existing bad brightness irregularities of display panel compensation effect.The viewing area of display panel of the invention includes a plurality of grid line extended along line direction and the multiple data lines extended along column direction, and the signal input part of each data line is respectively positioned on the first side of viewing area；And compensation making method includes：In the case where each grid line uses standard turn-on time, so that display panel is shown the picture of standard gray scale, and measure the brightness of viewing area in a column direction everywhere, obtains normal brightness distribution；It is distributed according to normal brightness, multiple compensating basins is divided into display in a column direction；Normal brightness distribution under, except near or farthest away from the first side compensating basin in addition to, any one other compensating basin close to and far from the first side two boundaries brightness difference be equal to human eye sensitivity；It is the offset for the turn-on time that each compensating basin sets grid line according to human eye sensitivity.
Description
Technical field
The invention belongs to show compensation technique field, and in particular to a kind of display panel and its compensation making method, driving
Method.
Background technique
In the viewing area of display panel (such as liquid crystal display panel), equipped with a plurality of grid line and a plurality of extended along line direction
The data line extended along column direction, the infall of the two define sub-pixel.In every frame picture, each grid line is connected in turn, when
Each data line is by the corresponding sub-pixel (charging) of the data-signal write-in of each sub-pixel corresponding to the grid line when one grid line is connected.
Because inevitably there is resistance, signal delay in data line, therefore the signal input part (connection number of range data line
According to one end of driving chip) in remoter row, the practical charging time of sub-pixel is shorter, charges more insufficient, thereby results in aobvious
Show the brightness irregularities of display panel different location.
But since preparation process inevitably fluctuates, therefore the intrinsic brilliance distribution situation of different batches display panel is not
Together；Moreover, the above Luminance Distribution might not also meet the impression of human eye；Therefore, it is bright to be unable to effective compensation or more for the prior art
Degree is uneven.
Summary of the invention
The present invention at least partly solves the problem of the existing bad brightness irregularities of display panel compensation effect, provides one
Good compensation effect can be achieved in kind, guarantees the display panel and its compensation making method, driving method of brightness uniformity.
A kind of compensation making method that technical solution used by present invention problem is display panel is solved, it is described aobvious
The viewing area for showing panel includes a plurality of grid line extended along line direction and the multiple data lines extended along column direction, each data
The signal input part of line is respectively positioned on first side of viewing area, and the compensation making method of the display panel includes：
In the case where each grid line uses standard turn-on time, the display panel is made to show the picture of standard gray scale
Face, and the brightness of the viewing area in a column direction everywhere is measured, obtain the normal brightness distribution of the viewing area；
It is distributed according to the normal brightness, multiple compensating basins is divided into the display in a column direction；In the standard
Under Luminance Distribution, except near or farthest away from first side the compensating basin in addition to, other any one of compensating basins
The difference of the brightness of two boundaries close and far from first side is equal to human eye sensitivity, and the human eye sensitivity is described
The minimum brightness that human eye can be felt under the corresponding brightness of standard gray scale is poor；
It is the offset for the turn-on time that each compensating basin sets the grid line according to the human eye sensitivity.
For example, being distributed described according to the normal brightness, multiple compensating basins are divided into the display in a column direction
It before, further include test human eye sensitivity comprising：
The viewing area is divided into the firstth area and the secondth area in a column direction；
The display panel is set to show the picture of the standard gray scale, wherein described in the grid line use in firstth area
The turn-on time of standard turn-on time, the grid line in secondth area is gradually decreased from the standard turn-on time；
When human eye can be when the boundary in firstth area and secondth area observes luminance difference, detection is described respectively divides
The brightness of boundary two sides, with the difference of the brightness of the boundary two sides for the human eye sensitivity.
Further for example, the equal length of firstth area and secondth area in a column direction.
Further for example, firstth area than secondth area closer to first side.
For example, described be distributed according to the normal brightness, multiple compensating basin packets are divided into the display in a column direction
It includes：
Under normal brightness distribution, since the viewing area in a column direction minimum side of brightness, along column side
To a partition boundaries are arranged at brightness one human eye sensitivity of every increase, each partition boundaries are by the viewing area
It is divided into multiple compensating basins.
For example, the standard gray scale is the maximum gray of the display panel and the median of minimum gray.
For example, the benefit of the turn-on time for setting the grid line for each compensating basin according to the human eye sensitivity
Repaying value includes：
According to each compensating basin the normal brightness distribution in luminance difference, determine each compensating basin wait mend
Luminance difference is repaid, the luminance difference to be compensated is the integral multiple of the human eye sensitivity；According to each compensating basin to
Compensation brightness difference sets the corresponding offset for it, and the offset is to be compensated for that can generate this under the standard gray scale
The charging time of luminance difference.
For example, the display panel is liquid crystal display panel.
For example, the display panel is OLED display panel.
Solving technical solution used by present invention problem is a kind of display panel, and viewing area includes along line direction
The infall of a plurality of grid line extended and the multiple data lines extended along column direction, the grid line and the data line defines sub- picture
Element, the signal input part of each data line are respectively positioned on first side of viewing area,
The viewing area is divided into multiple compensating basins in a column direction, and each compensating basin has the corresponding grid line
The offset of turn-on time；Wherein, in the case where each grid line uses standard turn-on time, when the display panel is shown
When the picture of standard gray scale, except near or farthest away from first side the compensating basin in addition to, other any one of benefits
The difference for repaying the brightness of close and far from the first side two boundaries in area is equal to human eye sensitivity, and the human eye sensitivity is in institute
It is poor to state the minimum brightness that human eye can be felt under the corresponding brightness of standard gray scale.
Solve the driving method that technical solution used by present invention problem is a kind of above-mentioned display panel, packet
It includes：
During display, the turn-on time of the grid line in each compensating basin is equal to the standard turn-on time
In addition the corresponding offset in the compensating basin.
Detailed description of the invention
Fig. 1 is that a kind of display panel the schematic diagram of luminance difference occurs；
Fig. 2 is a kind of schematic diagram of display panel of the embodiment of the present invention；
Fig. 3 is a kind of flow diagram of the compensation making method of display panel of the embodiment of the present invention；
Fig. 4 is the compensation making method Plays Luminance Distribution and compensating basin of a kind of display panel of the embodiment of the present invention
The schematic diagram of division；
Fig. 5 is the schematic diagram without luminance difference after a kind of display panel of the embodiment of the present invention compensates；
Fig. 6 is in the human eye sensitivity under different grayscale and the charging time needed for generating the brightness of the human eye sensitivity
Schematic diagram；
Wherein, appended drawing reference is：1, viewing area；11, compensating basin；2, data line；29, data driving chip；3, grid line.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Present invention is further described in detail for formula.
In the present invention, " row " and " column " only indicate intersection two relative directions, and with the shape of display panel, placement side
Formula etc. is without necessarily relationship.
As a kind of feasible mode, in a kind of liquid crystal display panel, sub-pixel in 3.3 μ s it is chargeable extremely
100%, and it is only chargeable to 60% in the time of 1.85 μ s.Therefore, in many display panels (especially high-resolution display surface
Plate, such as the display panel of 8K resolution ratio 60Hz refresh rate) in, in viewing area the signal input part of range data line farther out and compared with
Close position brightness irregularities.
For example, can be as shown in Figure 1, when data driving chip 29 is located at 1 lower section of viewing area, the place more against the top of viewing area 1
Brightness is lower.To solve this problem, viewing area can be divided into three compensating basins of upper, middle and lower, be arranged for each compensating basin different
The turn-on time of grid line allows the turn-on time of grid line in different compensating basins different, and then makes different compensating basin sub-pixels
The practical charging time relatively, makes brightness uniformity.
But the difference that different batches display panel is not considered with upper type, does not consider the impression of human eye yet.
Embodiment 1：
The present embodiment provides a kind of compensation making methods of display panel.
Specifically, the viewing area for the display panel that the above compensation making method is applicable in includes a plurality of grid extended along line direction
The infall of line and the multiple data lines extended along column direction, grid line and data line defines sub-pixel, and the signal of each data line is defeated
Enter end and is respectively positioned on the first side of viewing area.The compensation making method of the display panel includes：
In the case where each grid line uses standard turn-on time, display panel is set to show the picture of standard gray scale, and measure
The brightness of viewing area in a column direction everywhere obtains the normal brightness distribution of viewing area；
It is distributed according to normal brightness, multiple compensating basins is divided into display in a column direction；Under normal brightness distribution, remove
Outside the compensating basin of the first side, close and far from the first side two boundaries of any one other compensating basin
Brightness difference be equal to human eye sensitivity, human eye sensitivity be under the corresponding brightness of standard gray scale human eye can feel minimum it is bright
It is poor to spend；
It is the offset for the turn-on time that each compensating basin sets grid line according to human eye sensitivity.
The above compensation making method is used to set the compensation of the turn-on time of compensating basin and corresponding grid line for display panel
Value, so that different turn-on times can be used in the grid line in each compensating basin of display panel, and (i.e. standard is led when being shown
The logical time adds the corresponding offset in the compensating basin) so that the practical charging time of different compensating basins sub-pixel is relatively,
Brightness uniformity.
In the compensation making method of the display panel of the present embodiment, compensating basin according to actually measured brightness settings, therefore its
Setting meets the actual conditions of the display panel of each batch.
Meanwhile the luminance difference in adjacent compensation section is exactly the perceptible minimum value of human eye, and the compensating basin divided in this way
It is most reasonable, because：If compensating the smaller of Division, the difference human eye between different compensating basins does not observe at all,
Driving difficulty can only be increased and display effect is improved unobvious；If compensating the bigger of Division, human eye can be observed one
The different location of compensating basin not can effectively improve display effect there are still obvious luminance difference.
Embodiment 2：
As shown in Figures 2 to 6, the present embodiment provides a kind of compensation making methods of display panel.
The viewing area 1 of the applicable display panel of the above compensation making method includes 3 He of a plurality of grid line extended along line direction
The infall of the multiple data lines 2 extended along column direction, grid line 3 and data line 2 defines sub-pixel, and the signal of each data line 2 is defeated
Enter end and is respectively positioned on 1 first side of viewing area.
As shown in Fig. 2, the display panel has the viewing area 1 for being shown, it is equipped in viewing area 1 along line direction
The grid line 3 that (in figure by taking transverse direction as an example) extends and the data line 2 extended along column direction (in figure by taking longitudinal direction as an example), in 3 He of grid line
Each infall of data line 2 defines a sub-pixel, and each sub-pixel can be in corresponding grid line 3 and data line 2
Content needed for independent display under control, therefore the corresponding a line sub-pixel of every grid line 3, the corresponding column sub-pixel of every data line 2.
Wherein, the signal input part of all data lines 2 is respectively positioned on 1 the same side of viewing area, for example, can be as shown in Fig. 2, data driving chip
29 can be located at viewing area 1 lower section (as a result, in the present embodiment with the downside of viewing area 1 be the first side).
Optionally, as a kind of mode of the present embodiment, the above display panel is liquid crystal display panel.
For liquid crystal display panel, liquid crystal is applied by the charge stored in storage capacitance in the most of the time
Electric field simultaneously realizes display, if therefore charging is insufficient, the influence to its brightness is very big, therefore it is especially suitable for the sides of the present embodiment
Formula.
Alternatively, the another way as the present embodiment, the above display panel is OLED display panel.
OLED (Organic Light Emitting Diode) display panel is also required to maintain display content by storage capacitance, therefore same special
Mode suitable for the present embodiment.
Specifically, as shown in figure 3, the compensation making method of the above display panel includes：
S21, in the case where each grid line 3 is using standard turn-on time, so that display panel is shown the picture of standard gray scale, and
The brightness of viewing area 1 in a column direction everywhere is measured, the normal brightness distribution of viewing area is obtained.
That is, place grid line 3 is all made of an identical standard turn-on time, (default when i.e. without compensation is led
The logical time) in the case where, allow all sub-pixels of display panel to show that (it is selected as needed to identical standard gray scale
), to should theoretically obtain the uniform picture of 1 brightness throughout of viewing area (such as white picture).But due to the resistance of data line 2,
Signal delay etc., therefore the practical charging time actually further away from the sub-pixel of the first side (downside) is shorter, therefore, in column direction
On, the intrinsic brilliance of viewing area 1 is gradual change.And in this step, to determine that viewing area 1 is in column direction at this time by actual test
The brightness of upper different location is distributed to get to normal brightness.Wherein, specific normal brightness distribution can be as shown in figure 4, horizontal in figure
Coordinate is the number of grid line 3 (with the grid line 3 of top side for the 1st article, sum is 4320), also represents the longitudinal direction of viewing area
Position, it can be seen that, from downside to upside, brightness gradually decreases the display panel, and in brightness one human eye sensitivity of every difference
One compensating basin 11 is set at (indicating in figure with A%).
Optionally, the above standard gray scale is the maximum gray of display panel and the median of minimum gray.
That is, it is preferred to use standard gray scale of the grayscale as the above test between minimum and maximum grayscale, more
Preferably using the grayscale for leaning on centre as far as possible, such as to the display panel of 256 grayscale (L0~L255 grayscale), then L127 ash can be used
Rank (or L128 grayscale) is used as standard gray scale.This is because such grayscale corresponds to the intermediate luminance of display panel substantially, and root
There is preferable compensation effect to various display pictures according to the compensation way that the normal brightness distribution under such grayscale is found out.
S22, optional, human eye sensitivity test.
That is, can also obtain human eye sensitivity by actual test, wherein human eye sensitivity refers in the above standard
Under the corresponding brightness of grayscale, the minimum brightness that human eye can be felt is poor.Specifically, this step may include：
S221, viewing area 1 is divided into the firstth area and the secondth area in a column direction.
Optionally, the equal length of the firstth area and the secondth area in a column direction.Optionally, the firstth area than the secondth area closer to
First side.
That is, viewing area 1 is divided into the area Liang Ge in a column direction, the area Qie Liangge is preferably (showing for equal part
Show that area 1 is divided into two parts up and down), while preferably the firstth area is closer to the signal input part (i.e. more on the lower) of data line 2.
S222, the picture for making display panel display standard gray scale, wherein the grid line 3 in the firstth area uses standard turn-on time,
The turn-on time of the grid line 3 in the secondth area is gradually decreased from standard turn-on time.
That is, the area Liang Ge is allowed to show the picture of standard gray scale, and while starting all grid lines 3 are all made of the above standard
Turn-on time keeps the turn-on time of grid line in the firstth area constant later, and gradually decreases leading for grid line 3 in the secondth area at any time
The logical time, the brightness in the secondth area can also start to gradually change (as reduced) as a result,.
S223, when human eye can be when the boundary in the firstth area and the secondth area observes luminance difference, detection boundary two sides respectively
Brightness, with the brightness for the two sides that demarcate difference for human eye sensitivity.
That is, during above step S222, the boundary in the firstth area and the secondth area is constantly observed, and with the
The reduction of the turn-on time of grid line 3 in 2nd area, the brightness in the secondth area gradually change, and when it, which changes, arrives some value, human eye can be opened
Begin to observe luminance difference in the boundary in the firstth area and the secondth area；The brightness of the two sides of detection boundary at this time, is made with the difference of the two
For human eye sensitivity.
Of course it is to be understood that this step can also carry out before S21 step；Alternatively, this step can also be to pass through other sides
Formula tests human eye sensitivity；Alternatively, if knowing human eye sensitivity in advance, it can also be without this step.
S23, it is distributed according to normal brightness, in a column direction divides viewing area 1 for multiple compensating basins 11；In normal brightness point
Plant, except near or farthest away from the first side compensating basin 11 in addition to, any one other compensating basin 11 close to and far from first
The difference of the brightness of two boundaries of side is equal to human eye sensitivity.
That is, being distributed according to the normal brightness measured above, viewing area 1 is divided into multiple compensation in a column direction
Area 11, wherein each compensating basin 11 is one " horizontal stripe " in viewing area 1, corresponding a plurality of continuous grid line 3；And according to above
Normal brightness distribution, the luminance difference at the two sides up and down of each compensating basin 11 be more than human eye sensitivity；Certainly, due to whole
Luminance difference between a about 1 two sides of viewing area is not necessarily the integral multiple of human eye sensitivity, thus it is only most upper or most under compensation
The luminance difference of two sides may be unsatisfactory for being equal to human eye sensitivity up and down in area 11.
Optionally, this step is specially：Normal brightness distribution under, from viewing area 1 in a column direction brightness it is minimum one
Side starts, and a partition boundaries is arranged at brightness one human eye sensitivity of every increase along column direction, each partition boundaries will be shown
Area 1 is divided into multiple compensating basins 11.
That is, can since the minimum side (such as upside) of 1 brightness of viewing area, in a column direction (as downwards),
One " boundary " is set when luminance difference reaches a human eye sensitivity, and marks off a compensating basin 11；Certainly, at this time most
Human eye sensitivity may be not achieved in the luminance difference of two sides up and down for that compensating basin 11 (such as the compensating basin 11 under most) afterwards.
S24, according to human eye sensitivity be each compensating basin 11 set grid line 3 turn-on time offset.
That is, being that each compensating basin 11 sets corresponding offset according to the above human eye sensitivity, to respectively compensate
Turn-on time of the grid line 3 in actual displayed in area 11 is equal to standard turn-on time and adds corresponding offset, aobvious to reduce
Show the luminance difference between area's different location.
Optionally, this step includes：According to luminance difference of each compensating basin 11 in normal brightness distribution, each compensation is determined
The luminance difference to be compensated in area 11, luminance difference to be compensated are the integral multiple of human eye sensitivity；According to the to be compensated of each compensating basin 11
Luminance difference sets corresponding offset for it, and offset is when can generate the charging of the luminance difference to be compensated under standard gray scale
Between.
That is, according to the compensating basin 11 divided above, it is believed that in normal brightness distribution between each compensating basin 11
Luminance difference is the integral multiple (can be positive number, negative, 0) of human eye sensitivity, therefore can select some compensating basin 11 is standard, with each
Compensating basin 11 and its luminance difference are luminance difference to be compensated (luminance difference to be compensated for being chosen as the compensating basin 11 of standard is 0), therefore
The luminance difference to be compensated is the integral multiple of human eye sensitivity；Later, offset is set for each compensating basin 11, and offset is energy
Compensating basin 11 is set to generate the charging time of the above luminance difference.
Fig. 6 shows the human eye sensitivity (i.e. distinguishable minimum brightness is poor) under different grayscale and generates a people
Charging time needed for the brightness of eye sensitivity (since the data voltage under different grayscale is different, therefore charging time and brightness value
It is not direct ratio correlation).As it can be seen that human eye sensitivity at L31 grayscale (low ash rank) is 0.03nit, the corresponding charging time is
200ns then needs the 200ns that charges that is, to make brightness improve 0.03nit under L31 grayscale；And when L223 grayscale (high gray)
Human eye sensitivity be 1.3nit, corresponding charging time difference is 80ns or so；Human eye in the L127 grayscale preferably used
Sensitivity is 0.4nit, and the corresponding charging time is 60ns.
As a result, by taking L127 grayscale as an example, if the use of the grayscale being the brightness to be compensated that standard gray scale measures certain compensating basin 11
For 2 times of human eye sensitivity, then its corresponding offset is 60ns*2=120ns, i.e., the grid line in the compensating basin 11 is in reality
Turn-on time when display is equal to standard turn-on time and adds 120ns.
As it can be seen that since the different grayscale corresponding charging time is the integral multiple of 10ns, no matter therefore being made using which grayscale
For standard gray scale, as long as the lowest accuracy for the offset that display panel is able to achieve reaches 10ns.
It has been investigated that when being shown according to the liquid crystal display panel of above method setting compensating basin 11, in L127
Maximum difference in luminance under grayscale can reduce by 90%, and the average maximum difference in luminance of other grayscale can decline about 87%, show above
Method can obtain best compensation effect.
Meanwhile it has been investigated that, to three groups with model without the display panel of same batch, according to unified compensation setting
(setting obtained for another same model display panel according to above method), then their maximum compensation effect averagely reduces about
20%, this shows to its brightness of every batch of display panel actual measurement and obtains corresponding offset and be important.
Embodiment 3：
The present embodiment provides a kind of display panel, viewing area includes along a plurality of grid line of line direction extension and along column direction
The infall of the multiple data lines of extension, grid line and data line defines sub-pixel, and the signal input part of each data line is respectively positioned on aobvious
Show the first side of area,
Viewing area is divided into multiple compensating basins in a column direction, and each compensating basin has the benefit of the turn-on time of corresponding grid line
Repay value；Wherein, it in the case where each grid line uses standard turn-on time, when display panel shows the picture of standard gray scale, removes
Outside the compensating basin of the first side, close and far from the first side two boundaries of any one other compensating basin
Brightness difference be equal to human eye sensitivity, human eye sensitivity be under the corresponding brightness of standard gray scale human eye can feel minimum it is bright
It is poor to spend.
The present embodiment also provides a kind of above-mentioned displaying panel driving method comprising：
During display, the turn-on time of the grid line in each compensating basin is equal to standard turn-on time and adds the compensating basin
Corresponding offset.
That is, the display panel is when being shown, the grid line in each compensating basin is actually turned on time etc.
Corresponding offset is added in an identical standard turn-on time (default turn-on time when i.e. without compensation), by
The practical charging time of this different viewing areas sub-pixel relatively, can effectively eliminate or reduce between display panel different location
Luminance difference, improve display effect.Moreover, the above compensating basin and offset are to obtain according to above method, therefore it is suitble to not
With the specific requirement of batch display panel, and it not only can guarantee that compensation effect was preferable, but also not too high increase drives difficulty.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of compensation making method of display panel, the viewing area of the display panel includes a plurality of grid extended along line direction
The signal input part of line and each data line of multiple data lines along column direction extension is respectively positioned on first side of viewing area,
It is characterized in that, the compensation making method of the display panel includes：
In the case where each grid line uses standard turn-on time, the display panel is made to show the picture of standard gray scale, and
The brightness of the viewing area in a column direction everywhere is measured, the normal brightness distribution of the viewing area is obtained；
It is distributed according to the normal brightness, multiple compensating basins is divided into the display in a column direction；In the normal brightness
Under distribution, except near or farthest away from first side the compensating basin in addition to, other any one of compensating basins it is close
It is equal to human eye sensitivity with the difference of the brightness of two boundaries far from first side, the human eye sensitivity is in the standard
The minimum brightness that human eye can be felt under the corresponding brightness of grayscale is poor；
It is the offset for the turn-on time that each compensating basin sets the grid line according to the human eye sensitivity.
2. the compensation making method of display panel according to claim 1, which is characterized in that described according to the standard
Luminance Distribution further includes test human eye sensitivity, packet before multiple compensating basins are divided into the display in a column direction
It includes：
The viewing area is divided into the firstth area and the secondth area in a column direction；
The display panel is set to show the picture of the standard gray scale, wherein the grid line in firstth area uses the standard
The turn-on time of turn-on time, the grid line in secondth area is gradually decreased from the standard turn-on time；
When human eye can detect respectively the boundary two when the boundary in firstth area and secondth area observes luminance difference
The brightness of side, with the difference of the brightness of the boundary two sides for the human eye sensitivity.
3. the compensation making method of display panel according to claim 2, which is characterized in that
The equal length of firstth area and secondth area in a column direction.
4. the compensation making method of display panel according to claim 2, which is characterized in that
Firstth area is than secondth area closer to first side.
5. the compensation making method of display panel according to claim 1, which is characterized in that described bright according to the standard
Degree distribution, multiple compensating basins are divided into the display in a column direction includes：
Under normal brightness distribution, since the viewing area in a column direction minimum side of brightness, exist along column direction
One partition boundaries is set at brightness one human eye sensitivity of every increase, and each partition boundaries are by the display Division
For multiple compensating basins.
6. the compensation making method of display panel according to claim 1, which is characterized in that
The standard gray scale is the maximum gray of the display panel and the median of minimum gray.
7. the compensation making method of display panel according to claim 1, which is characterized in that described according to the human eye spirit
Sensitivity is that the offset for the turn-on time that each compensating basin sets the grid line includes：
According to luminance difference of each compensating basin in normal brightness distribution, the to be compensated bright of each compensating basin is determined
It is poor to spend, and the luminance difference to be compensated is the integral multiple of the human eye sensitivity；According to the described to be compensated of each compensating basin
Luminance difference sets the corresponding offset for it, and the offset is that the brightness to be compensated can be generated under the standard gray scale
The charging time of difference.
8. the compensation making method of display panel as claimed in any of claims 1 to 7, which is characterized in that
The display panel is liquid crystal display panel or OLED display panel.
9. a kind of display panel, viewing area includes a plurality of grid line extended along line direction and a plurality of data extended along column direction
The infall of line, the grid line and the data line defines sub-pixel, and the signal input part of each data line is respectively positioned on described
The first side of viewing area, which is characterized in that
The viewing area is divided into multiple compensating basins in a column direction, and each compensating basin has the conducting of the corresponding grid line
The offset of time；Wherein, in the case where each grid line uses standard turn-on time, when the display panel shows standard
When the picture of grayscale, except near or farthest away from first side the compensating basin in addition to, other any one of compensating basins
Close to and far from the first side two boundaries brightness difference be equal to human eye sensitivity, the human eye sensitivity be in the mark
The minimum brightness that human eye can be felt under the corresponding brightness of quasi- grayscale is poor.
10. a kind of driving method of display panel, which is characterized in that the display panel is display surface as claimed in claim 9
The driving method of plate, the display panel includes：
During display, the turn-on time of the grid line in each compensating basin is equal to the standard turn-on time and adds
The corresponding offset in the compensating basin.
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| CN108877715B (en) | 2021-01-26 |
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