CN110085173A - Driving method, driving chip and the display device of display panel - Google Patents
Driving method, driving chip and the display device of display panel Download PDFInfo
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- CN110085173A CN110085173A CN201910531299.6A CN201910531299A CN110085173A CN 110085173 A CN110085173 A CN 110085173A CN 201910531299 A CN201910531299 A CN 201910531299A CN 110085173 A CN110085173 A CN 110085173A
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- display panel
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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]
- G09G3/3266—Details of drivers for scan electrodes
-
- 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]
- G09G3/3275—Details of drivers for data electrodes
-
- 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
- G09G2320/0257—Reduction of after-image effects
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The embodiment of the invention provides a kind of driving method of display panel, driving chip and display devices, are related to field of display technology, to improve ghost phenomena, improve display performance.Above-mentioned driving method, it include: to monitor display panel static pattern shown under the first drive mode, when the display brightness value of the display brightness value of static pattern region and its periphery pattern region meets preset condition, region locating for static pattern is defined as target area；With the pixel circuit in the second drive mode driving target area, under the second drive mode, grid line is scanned pixel circuit with second frequency, second frequency is greater than the first frequency that grid line scans pixel circuit under the first drive mode, under the second drive mode, pixel circuit drive cycle includes signal switching period, initialization period, data-signal write-in period and light-emitting period, switches the period in signal, different data-signals is written to pixel circuit for data line.
Description
[technical field]
The present invention relates to field of display technology more particularly to a kind of driving methods of display panel, driving chip and display
Device.
[background technique]
Currently, organic light emission (Organic Light Emitting Display, abbreviation OLED) display panel is due to it
With good characteristics such as self-luminous, high brightness, wide viewing angle, fast reactions, application is more and more extensive.
For the normal luminous for driving OLED display panel, display panel is interior to be equipped with multiple pixel circuits, each pixel circuit
Including driving transistor and multiple switch transistor, although existing pixel circuit can be improved by internal compensation because of technique and
The problem for driving display caused by the threshold voltage shift of transistor uneven caused by transistor ageing still works as display surface
Plate is driven the influence of transistor hesitation, it may appear that ghost phenomena influences to show when carrying out the switching of height grey menu
Show performance.
[summary of the invention]
In view of this, the embodiment of the invention provides a kind of driving method of display panel, driving chip and display device,
To be effectively improved ghost phenomena, display performance is improved.
On the one hand, the embodiment of the invention provides a kind of driving methods of display panel, comprising:
Display panel static pattern shown under the first drive mode is monitored, when the static pattern region
When display brightness value and the display brightness value of its periphery pattern region meet preset condition, by area locating for the static pattern
Domain is defined as target area；
The pixel circuit in the target area is driven with the second drive mode, under second drive mode, grid line
The pixel circuit is scanned with second frequency, the second frequency is greater than the grid line pair under first drive mode
The first frequency of the pixel circuit scanning, also, under the second drive mode, the drive cycle of pixel circuit includes that signal is cut
Period, initialization period, data-signal write-in period and light-emitting period are changed, switches the period in the signal, data line is to described
Different data-signals is written in pixel circuit.
Optionally, the display brightness value of the static pattern region is L1, and periphery pattern region is shown
Show that brightness value is L2, the preset condition is L1/L2 >=1000.
Optionally, the second frequency is f, f >=90Hz.
Optionally, the when a length of N, 2s of the pixel circuit in the target area are driven with second drive mode
≤N≤10s。
Optionally, switch the period in the signal, the grid line to the scanning signal that the pixel circuit export include m a
Rising edge, at least one described rising edge, the data-signal that the data line is written to the pixel circuit carries out height
The switching of level, m >=2.
Optionally, the data-signal of the data line write-in carries out low and high level switching at each rising edge.
Optionally, described to drive the pixel circuit in the target area to include: with the second drive mode
The pixel circuit in the display panel whole region is driven with second drive mode.
On the other hand, the embodiment of the invention provides a kind of driving chips, comprising:
Locating module, the locating module are electrically connected with display panel, for monitoring the display panel in the first driving
Shown static pattern under mode, display brightness value and its periphery pattern region when the static pattern region
Display brightness value when meeting preset condition, region locating for the static pattern is defined as target area；
First control module, first control module are electrically connected with the display panel, the locating module, are used for
After determining the target area, control grid line is scanned the pixel circuit in the target area with second frequency,
In, the second frequency is greater than the first frequency that the grid line scans the pixel circuit under first drive mode；
Second control module, second control module are electrically connected with the display panel, the locating module, are used for
After determining the target area, different data letters is written to the pixel circuit in the signal switching period for control data line
Number.
Optionally, the driving chip includes the first sub- driving chip and the second sub- driving chip, the first control mould
Block is located at the described first sub- driving chip.
In another aspect, the embodiment of the invention provides a kind of display device, including display panel and above-mentioned driving chip.
A technical solution in above-mentioned technical proposal has the following beneficial effects:
Using technical solution provided by the present invention, after determining target area, on the one hand, by improving grid line to mesh
The scan frequency for marking pixel circuit in region, can be improved the charging times of the partial pixel circuit, to accelerate data-signal
The rate of driving transistor in writing pixel circuit；When on the other hand, by adding a signal switching before initialization period
Section, and then different data-signals is written in the pixel circuit within the period into target area, can be avoided the driving of this part
Transistor receives an identical bias voltage for a long time, and when picture is jumped, which can be quick
Switch to next bias voltage.
As it can be seen that using the technical solution, by raising to the sweep speed of pixel circuit in target area, and in signal
Switch pixel circuit of the period into target area and different data-signals is written, can be avoided the driving crystal in target area
The received bias voltage of pipe institute remains unchanged for a long time, to reduce the hesitation of driving transistor, is effectively improved target area
Domain generated ghost phenomena when height grey menu switches, improves display performance.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the flow chart of driving method provided by the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of pixel circuit in the prior art；
Fig. 3 is the corresponding signal timing diagram of drive cycle provided by the embodiment of the present invention；
Fig. 4 is the corresponding another signal timing diagram of drive cycle provided by the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of driving chip provided by the embodiment of the present invention；
Fig. 6 is another structural schematic diagram of driving chip provided by the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of display device provided by the embodiment of the present invention.
[specific embodiment]
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It will be appreciated that though control module may be described in embodiments of the present invention using term first, second, but this
A little control modules should not necessarily be limited by these terms.These terms are only used to for control module being distinguished from each other out.For example, not departing from this
In the case where inventive embodiments range, the first control module can also be referred to as the second control module, similarly, the second control mould
Block can also be referred to as the first control module.
The embodiment of the invention provides a kind of driving methods of display panel, and as shown in FIG. 1, FIG. 1 is the embodiment of the present invention
The flow chart of provided driving method, the driving method include:
Step S1: monitoring display panel static pattern shown under the first drive mode, when static pattern location
When the display brightness value in domain and the display brightness value of its periphery pattern region meet preset condition, by area locating for static pattern
Domain is defined as target area.
It should be noted that the first drive mode refers to display panel applied drive mode in normal display.It is aobvious
When showing that panel shows picture under the first drive mode, the static pattern in target area refers to compared to its periphery pattern displaying
The higher pattern of brightness, such as the clock information, the date information that are shown on mobile phone screen etc..
Step S2: with the pixel circuit in the second drive mode driving target area, under the second drive mode, grid line pair
Pixel circuit is scanned with second frequency, and second frequency is greater than grid line scans pixel circuit under the first drive mode first
Frequency, also, under the second drive mode, the drive cycle of pixel circuit includes the signal switching period, initialization period, data
Period and light-emitting period is written in signal, switches the period in signal, different data-signals is written to pixel circuit for data line.
For static pattern higher for display brightness in target area, after picture is jumped, target area holds
Easily there is the residual of static pattern before picture jumps, that is, ghost phenomena occur.And use driving provided by the embodiment of the present invention
Method, after determining target area, on the one hand, by improving scan frequency of the grid line to pixel circuit in target area, energy
The charging times of the partial pixel circuit are enough improved, to accelerate the speed of driving transistor in data-signal writing pixel circuit
Rate；On the other hand, switch the period by adding a signal before initialization period, and then within the period into target area
Pixel circuit different data-signals is written, can be avoided this section drive transistor for a long time receive an identical biased electrical
Pressure, when picture is jumped, which can be rapidly switched to next bias voltage.
As it can be seen that using the driving method, by improving the sweep speed to pixel circuit in target area, and by
Signal switches pixel circuit of the period into target area and different data-signals is written, and can be avoided the driving in target area
The received bias voltage of transistor institute remains unchanged for a long time, to reduce the hesitation of driving transistor, is effectively improved mesh
Region generated ghost phenomena when height grey menu switches is marked, display performance is improved.
In addition, it should be noted that, the working principle based on pixel circuit, only need to be written the period to pixel in data-signal
Data-signal needed for circuit write-in display is the normal luminous that can guarantee display panel, therefore, in the signal switching period to writing
The data-signal entered, which is adjusted, will not influence normal luminous.
Optionally, the display brightness value of static pattern region is L1, the display brightness value of periphery pattern region
For L2, preset condition is L1/L2 >=1000.
It is understood that the display brightness value of different zones is different in a display picture, that is to say, that
For two neighboring region, the display brightness in a region is typically larger than the display brightness in another region.By using in advance
If condition is defined the ratio of L1 and L2, enable to only when L1/L2 is greater than or equal to 1000, it just can be by the static state
Region recognition where pattern is target area, can be accurately defined to target area, and identification mistake is avoided.
For current display panel, display panel is normally being shown, i.e., under the first drive mode, scan frequency
Usually 30Hz or 60Hz is swept in embodiments of the present invention to ensure to effectively improve grid line to pixel circuit in target area
Frequency is retouched, and then the ghost phenomena of this partial region is effectively reduced, second frequency can be enabled for f satisfaction: f >=90Hz.
It optionally, is the ghost phenomena for further improving target area, in the second drive mode driving target area
The when a length of N of pixel circuit, can enable N meet: 2s≤N≤10s.N is arranged between 2s~10s, ensure that target area exists
Enough durations are shown under the driving of second drive mode, so that the hesitation to this section drive transistor is effectively changed
It is kind.
Optionally, signal switch the period, grid line to the scanning signal that pixel circuit exports include m rising edge, extremely
At a few rising edge, the data-signal that data line is written to pixel circuit carries out the switching of low and high level, m >=2.
By taking the scanning signal that export to pixel circuit of grid line includes 2 rising edges in the signal switching period as an example, as Fig. 2 with
Shown in Fig. 3, Fig. 2 is a kind of structural schematic diagram of pixel circuit in the prior art, and Fig. 3 is driving provided by the embodiment of the present invention
Period corresponding signal timing diagram, drive cycle include signal switching period T1, initialization period T2, data-signal write-in period
T3 and light-emitting period T4.
Switch period T1 in signal, when the signal appearance of grid line Scan1 (pixel circuit be expert at corresponding grid line) output
When the 1st rising edge, the scanning signal of grid line Scan2 (the corresponding grid line of pixel circuit next line of the row) output is effective
Low level, switching transistor T2 is connected under the action of low level, and the data-signal that data line provides is switched to by low level
The data-signal of high level, high level is transmitted to driving transistor T3 via the switching transistor T2 that opens of conducting, at this point, driving is brilliant
The received bias voltage of body pipe T3 institute is converted from positive bias voltage PBS to negative bias voltage NBS.
When the 2nd rising edge occurs in the signal of grid line Scan1 output, the scanning signal of grid line Scan2 output is effective
Low level, data line provide data-signal low level is switched to by high level, low level data-signal is via conducting
Switching transistor T2 is transmitted to driving transistor T3, at this point, the received bias voltage of driving transistor T3 institute is by negative bias voltage
NBS is converted to positive bias voltage PBS.
It should also be noted that, period T3 and light-emitting period T4, pixel circuit is written in initialization period T2, data-signal
Working principle it is same as the prior art, details are not described herein again.
In addition it is also necessary to explanation, to realize that grid line switches m rising edge of period output in signal, for controlling
Grid line sequentially exports and adds m frame start signal on the shift register of scanning signal.
Further, it is the switching that the data-signal of write driver transistor is carried out to higher rate, reduces it and receive together
The duration of one signal switches the period in signal, and the data-signal that data line can be enabled to be written carries out height at each rising edge
Level switching.By taking Fig. 4 as an example, Fig. 4 is the corresponding another signal timing diagram of drive cycle provided by the embodiment of the present invention,
At 1st rising edge of Scan1 signal, the data-signal of data line write-in is high level by low transition, in Scan1 signal
The 2nd rising edge at, data line write-in data-signal low level is converted to by high level, on the 3rd of Scan1 signal
It rising at, the data-signal of data line write-in is high level by low transition, at the 4th rising edge of Scan1 signal, number
Low level is converted to by high level according to the data-signal that line is written.
It optionally, include: with the driving of the second drive mode with the pixel circuit in the second drive mode driving target area
Pixel circuit in display panel whole region.
It is right with the pixel circuit in the second drive mode driving display panel whole region after determining target area
The scan frequency of whole pixel circuits and the data-signal of write-in are adjusted, before improving the ghost phenomena in target area
It puts, also reduces driving difficulty, improve exploitativeness.
The embodiment of the invention also provides a kind of driving chips 200, as shown in figure 5, Fig. 5 is provided by the embodiment of the present invention
Driving chip structural schematic diagram, the driving chip 200 include locating module 1, the first control module 2 and the second control module
3。
Wherein, locating module 1 is electrically connected with display panel 100, for monitoring display panel 100 under the first drive mode
Shown static pattern, when the display brightness value of static pattern region and the display brightness of its periphery pattern region
When value meets preset condition, region locating for static pattern is defined as target area.
First control module 2 is electrically connected with display panel 100, locating module 1, for controlling after determining target area
Grid line processed is scanned the pixel circuit in target area with second frequency, wherein second frequency is greater than the first drive mode
The first frequency that lower grid line scans pixel circuit.
Second control module 3 is electrically connected with display panel 100, locating module 1, for controlling after determining target area
Different data-signals is written to pixel circuit in the signal switching period for data line processed.
Using driving chip 200 provided by the embodiment of the present invention, after locating module 1 orients target area, a side
Face can be improved this by improving grid line to the scan frequency of pixel circuit in target area using the control of the first control module 2
The charging times of partial pixel circuit, to accelerate the rate of driving transistor in data-signal writing pixel circuit；Another party
Face, by switching pixel circuit write-in of the period control data line into target area not in signal using the second control module 3
Same data-signal can be avoided this section drive transistor and receive an identical bias voltage for a long time, when picture is jumped
When turning, which can be rapidly switched to next bias voltage, and the sluggishness of driving transistor is effectively reduced
Effect improves target area generated ghost phenomena when height grey menu switches, improves display performance.
Optionally, as shown in fig. 6, Fig. 6 is another structural schematic diagram of driving chip provided by the embodiment of the present invention,
Driving chip 200 includes the first sub- driving chip 2001 and the second sub- driving chip 2002, and the first control module 2 is located at the first son
Driving chip 2001.The scan frequency in target area is controlled by using the individual first sub- driving chip 2001,
It is capable of increasing the reliability for improving scan frequency in target area.
The embodiment of the invention also provides a kind of display devices, as shown in fig. 7, Fig. 7 is provided by the embodiment of the present invention
The structural schematic diagram of display device, the display device include display panel 100 and above-mentioned driving chip 200.Wherein, driving chip
200 specific structure is described in detail in the above-described embodiments, and details are not described herein again.Certainly, display shown in Fig. 7
Device is only schematically illustrate, which can be such as mobile phone, tablet computer, laptop, electric paper book or electricity
Depending on any electronic equipment having a display function such as machine.
The display device as provided by the embodiment of the present invention includes above-mentioned driving chip 200, it is filled using the display
It sets, is capable of increasing the switching rate of the bias voltage of the driving transistor in 100 target area of display panel, reduces driving crystal
The hesitation of pipe is effectively improved target area generated ghost phenomena in the switching of height grey menu, improves display property
Energy.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of driving method of display panel characterized by comprising
Display panel static pattern shown under the first drive mode is monitored, when the display of the static pattern region
When the display brightness value of brightness value and its periphery pattern region meets preset condition, region locating for the static pattern is determined
Justice is target area；
The pixel circuit in the target area is driven with the second drive mode, under second drive mode, grid line is to institute
It states pixel circuit to be scanned with second frequency, the second frequency is greater than the grid line under first drive mode to described
The first frequency of pixel circuit scanning, also, under the second drive mode, when the drive cycle of pixel circuit includes signal switching
Section, initialization period, data-signal write-in period and light-emitting period switch the period in the signal, and data line is to the pixel
Different data-signals is written in circuit.
2. driving method according to claim 1, which is characterized in that the display brightness value of the static pattern region
For L1, the display brightness value of periphery pattern region is L2, and the preset condition is L1/L2 >=1000.
3. driving method according to claim 1, which is characterized in that the second frequency is f, f >=90Hz.
4. driving method according to claim 1, which is characterized in that drive the target area with second drive mode
The when a length of N, 2s≤N≤10s of the pixel circuit in domain.
5. driving method according to claim 1, which is characterized in that switch the period in the signal, the grid line is to institute
The scanning signal for stating pixel circuit output includes m rising edge, and at least one described rising edge, the data line is to described
The data-signal of pixel circuit write-in carries out the switching of low and high level, m >=2.
6. driving method according to claim 5, which is characterized in that the data-signal of the data line write-in is in each institute
It states and carries out low and high level switching at rising edge.
7. driving method according to claim 1, which is characterized in that described to drive the target area with the second drive mode
Pixel circuit in domain includes:
The pixel circuit in the display panel whole region is driven with second drive mode.
8. a kind of driving chip characterized by comprising
Locating module, the locating module are electrically connected with display panel, for monitoring the display panel in the first drive mode
Lower shown static pattern, when the display brightness value of the static pattern region and showing for its periphery pattern region
When showing that brightness value meets preset condition, region locating for the static pattern is defined as target area；
First control module, first control module are electrically connected with the display panel, the locating module, in determination
Out behind the target area, control grid line is scanned the pixel circuit in the target area with second frequency, wherein institute
Second frequency is stated greater than the first frequency that the grid line under first drive mode scans the pixel circuit；
Second control module, second control module are electrically connected with the display panel, the locating module, in determination
Out behind the target area, different data-signals is written to the pixel circuit in the signal switching period for control data line.
9. driving chip according to claim 8, which is characterized in that the driving chip include the first sub- driving chip and
Second sub- driving chip, first control module are located at the described first sub- driving chip.
10. a kind of display device, which is characterized in that including display panel and driving chip as claimed in claim 8 or 9.
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| CN201910531299.6A CN110085173B (en) | 2019-06-19 | 2019-06-19 | Driving method of display panel, driving chip and display device |
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| CN201910531299.6A CN110085173B (en) | 2019-06-19 | 2019-06-19 | Driving method of display panel, driving chip and display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111028781A (en) * | 2019-12-26 | 2020-04-17 | 厦门天马微电子有限公司 | Driving method and driving device of display panel and display equipment |
| CN112885277A (en) * | 2021-01-14 | 2021-06-01 | 合肥维信诺科技有限公司 | Display method of display panel, display module and display device |
| CN115578971A (en) * | 2022-10-31 | 2023-01-06 | 惠科股份有限公司 | Display device and display driving method thereof |
| WO2024031319A1 (en) * | 2022-08-09 | 2024-02-15 | 京东方科技集团股份有限公司 | Pixel driving method, pixel driving circuit, and display device |
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