CN110379365A - A kind of organic light emitting display panel, display device and driving method - Google Patents
A kind of organic light emitting display panel, display device and driving method Download PDFInfo
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- CN110379365A CN110379365A CN201910662644.XA CN201910662644A CN110379365A CN 110379365 A CN110379365 A CN 110379365A CN 201910662644 A CN201910662644 A CN 201910662644A CN 110379365 A CN110379365 A CN 110379365A
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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]
Abstract
The invention discloses a kind of organic light emitting display panel, display device and driving methods, with the organic light emitting display panel that solves the prior art, there are the fluorescent lifetime of luminous organic material is long, show the picture problem short there are branding and organic light emitting display panel service life.The driving method of the organic light emitting display panel, comprising: progressively scan each pixel column；When current pixel row is arrived in scanning, controls the current pixel row and show；Before scanning to next line pixel column, the current pixel row is closed.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of organic light emitting display panels, display device and driving side
Method.
Background technique
Organic light emitting display panel (Organic Light-Emitting Diode, OLED) display refers to organic semiconductor
Material and luminescent material are under electric field driven, the phenomenon that injection by carrier with composite guide photoluminescence.Its principle is certain
Under voltage driving, electrons and holes are injected into electron and hole transport layer from cathode and anode respectively, and electrons and holes pass through respectively
It crosses electron and hole transport layer and moves to luminescent layer, and meet in luminescent layer, form exciton and excite light emitting molecule, the latter
Visible light is issued by radiative relaxation.
It is shown in Figure 1, it is the display process schematic of each pixel column in a frame picture, that is, the OLED of the prior art has
It is that signal refreshes line by line that the signal of machine light emitting display panel, which refreshes mode, only when the signal of the same pixel column of next frame is come
When, it could be the content covering of this pixel column of previous frame, before not refreshing, the content of this pixel column of previous frame is shown always.
That is, the luminous organic material of each pixel unit has what fluorescent lifetime was grown in each pixel column, and luminous organic material
Fluorescent lifetime is long, can reduce the service life of organic light emitting display panel, and make show picture there are the brandings that ghost is retained
Phenomenon.
Summary of the invention
The present invention provides a kind of organic light emitting display panel, display device and driving method, to solve having for the prior art
Machine light emitting display panel is there are the fluorescent lifetime of luminous organic material is long, and there are branding and organic light emitting displays for display picture
The short problem of panel service life.
The embodiment of the present invention provides a kind of driving method of organic light emitting display panel, comprising:
Progressively scan each pixel column；
When current pixel row is arrived in scanning, controls the current pixel row and show；
Before scanning to next line pixel column, the current pixel row is closed.
It is described before scanning to next line pixel column in a kind of possible embodiment, close the current pixel
Row, comprising:
Before the scanning signal cut-off of the current pixel row, the data-signal of the current pixel row is closed.
In a kind of possible embodiment, described before the scanning signal cut-off of the current pixel row, closing should
The data-signal of the current pixel row, comprising:
By way of increasing the duty ratio of scanning signal of the current pixel row, with sweeping in the current pixel row
Before retouching signal cut-off, the data-signal of the current pixel row is closed.
In a kind of possible embodiment, described before the scanning signal cut-off of the current pixel row, closing should
The data-signal of the current pixel row, comprising:
By way of reducing the duty ratio of the data-signal of the current pixel row, in the current pixel row
Scanning signal cut-off before, close the data-signal of the current pixel row.
In a kind of possible embodiment, described before the scanning signal cut-off of the current pixel row, closing should
The data-signal of the current pixel row, comprising:
By increasing the duty ratio of the scanning signal of the current pixel row, and reduce the institute of the current pixel row
The mode of the duty ratio of data-signal is stated, it is described current to close this before the cut-off of the scanning signal of the current pixel row
The data-signal of pixel column.
In a kind of possible embodiment, described before the scanning signal cut-off of the current pixel row, closing should
The data-signal of the current pixel row, comprising:
1 to 3 microsecond before the scanning signal cut-off of the current pixel row, closes the current pixel row
The data-signal.
In a kind of possible embodiment, the driving method further include:
Before the scanning signal of the current pixel row is opened, the data of the current pixel row are opened
Signal.
In a kind of possible embodiment, before progressively scanning each pixel column, the driving method further include:
It controls the display panel and carries out refreshing to set frame frequency and show, wherein each frame only shows one-row pixels row, institute
It states setting frame frequency and is greater than 1000.
The embodiment of the present invention also provides a kind of organic light emitting display panel, using as described in provided by the embodiment of the present invention
Driving method driven, wherein the organic light emitting display panel be organic electroluminescent display panel or micron formula from
LED display panel.
The embodiment of the present invention also provides a kind of display device, including the organic light emission as described in provided in an embodiment of the present invention
Display panel.
The embodiment of the present invention has the beneficial effect that: the driving side of organic light emitting display panel provided in an embodiment of the present invention
Method, comprising: progressively scan each pixel column；When current pixel row is arrived in scanning, controls the current pixel row and show；It is arrived in scanning
Before next line pixel column, the current pixel row is closed, that is, in the display of next pixel column, be turned off a pixel column, together
One period only had one-row pixels row and is shown, rest of pixels row is in non-luminous dark state, can make pixel column
In luminous organic material most of the time of each pixel unit be in non-light emitting state, the use of luminous organic material can be extended
In the service life, extend the service life of organic light emitting display panel, and improves the problem of organic light emitting display panel is easy to appear branding.
Detailed description of the invention
Fig. 1 is a kind of pixel column renewal process schematic diagram of organic light emitting display panel of the prior art；
Fig. 2 is a kind of driving method flow diagram of organic light emitting display panel provided in an embodiment of the present invention；
Fig. 3 is a kind of pixel column renewal process schematic diagram of organic light emitting display panel provided in an embodiment of the present invention；
Fig. 4 is a kind of driving method process signal of specific organic light emitting display panel provided in an embodiment of the present invention
Figure；
Fig. 5 is the duty ratio provided in an embodiment of the present invention by increase scanning signal to close showing for data-signal in advance
It is intended to；
Fig. 6 is the duty ratio provided in an embodiment of the present invention by diminution data-signal to close showing for data-signal in advance
It is intended to.
Specific embodiment
In order to enable the purposes, technical schemes and advantages of the embodiment of the present disclosure are clearer, below in conjunction with disclosure reality
The technical solution of the embodiment of the present disclosure is clearly and completely described in the attached drawing for applying example.Obviously, described embodiment is
A part of this disclosure embodiment, instead of all the embodiments.Based on described embodiment of the disclosure, this field is common
Technical staff's every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the model of disclosure protection
It encloses.
Unless otherwise defined, the technical term or scientific term that the disclosure uses should be tool in disclosure fields
The ordinary meaning for thering is the personage of general technical ability to be understood." first ", " second " used in the disclosure and similar word are simultaneously
Any sequence, quantity or importance are not indicated, and are used only to distinguish different component parts." comprising " or "comprising" etc.
Similar word means that the element or object before the word occur covers the element or object for appearing in the word presented hereinafter
And its it is equivalent, and it is not excluded for other elements or object.The similar word such as " connection " or " connected " is not limited to physics
Or mechanical connection, but may include electrical connection, it is either direct or indirectly."upper", "lower",
"left", "right" etc. is only used for indicating relative positional relationship, and after the absolute position for being described object changes, then the relative position is closed
System may also correspondingly change.
In order to keep the following explanation of the embodiment of the present disclosure to understand and concise, known function and known portion is omitted in the disclosure
The detailed description of part.
Shown in referring to figs. 2 and 3, the embodiment of the present invention provides a kind of driving method of organic light emitting display panel, comprising:
Step S101, each pixel column is progressively scanned.
Step S102, when current pixel row is arrived in scanning, control current pixel row is shown.
Step S103, before scanning to next line pixel column, current pixel row is closed.
The driving method of organic light emitting display panel provided in an embodiment of the present invention, comprising: progressively scan each pixel column；?
When scanning current pixel row, control current pixel row is shown；Before scanning to next line pixel column, current pixel is closed
Row, for example, current pixel behavior nth row of pixels row, when nth row of pixels row is arrived in scanning, control nth row of pixels row is shown,
It scans to before N+1 row pixel column, closes nth row of pixels row, that is, in the display of next pixel column, be turned off a pixel
Row, same period only have one-row pixels row and are shown, rest of pixels row is in non-luminous dark state, can make picture
The luminous organic material most of the time of each pixel unit is in non-light emitting state in plain row, can extend luminous organic material
Service life, extends the service life of organic light emitting display panel, and improves organic light emitting display panel and be easy to appear branding
Problem.
In the specific implementation, shown in Figure 4, before step S101, that is, before progressively scanning each pixel column, drive
Dynamic method further include: step S100, control the display panel and carry out refreshing to set frame frequency and show, wherein each frame only shows one
Row pixel column, setting frame frequency are greater than 1000.That is, each width figure can be used as in 7 secondary figures in scanning process as shown in Figure 3
One frame shows that picture is shown, is realized by promoting turnover rate and each only update one-row pixels row in the normal display of realization
While, shorten the display time of each pixel column, extends the service life of luminous organic material.
In the specific implementation, as shown in connection with fig. 5, wherein Gate, Data in Fig. 5 are provided in an embodiment of the present invention sweep
Signal and data-signal are retouched, Gate0, Data0 are the scanning signal and data-signal of the prior art.For step S103,
That is, in the embodiment of the present invention, can specifically include: current scanning to current pixel row before next line pixel column, is closed
Before the scanning signal Gate cut-off of pixel column, the data-signal Data for deserving front pixel row is closed.That is, the embodiment of the present invention
In, it can be by closing data-signal Data, and then adjustable scanning signal in advance before scanning signal Gate closing
The state of Gate is to reach following state: when Gate high potential turns low potential, data-signal Data has been in low potential, Gu pixel
Charge can be in low-potential state in Pixel, pixel unit Pixel can switch to dark-state at this time, until Gate next time updates
Pixel charge potential, and then realize before next line pixel column is shown, close a upper pixel column.And the prior art is usually,
When Gate high potential turns low potential, data-signal Data is still in high potential, Gu charge can be in high potential shape in pixel Pixel
State, pixel unit Pixel can be shinny at this time, until Gate next time updates Pixel charge potential, in turn, the prior art
Pixel unit is constantly in luminance before next frame update, and fluorescent lifetime is longer.
In the specific implementation, as shown in connection with fig. 5, for before the cut-off of the scanning signal of current pixel row, closing is deserved
The data-signal of front pixel row, can specifically include: by way of increasing the duty ratio of scanning signal of current pixel row,
That is, data-signal compared with the prior art, the embodiment of the present invention increases the effectual time of scanning signal Gate, current
Before the scanning signal cut-off of pixel column, the data-signal for deserving front pixel row is closed.
In addition, in the specific implementation, as shown in connection with fig. 6, for closing before the cut-off of the scanning signal of current pixel row
Deserve the data-signal of front pixel row, is specifically also possible to include: by reducing accounting for for the data-signal Data of current pixel row
The mode of empty ratio, that is, data-signal compared with the prior art, the embodiment of the present invention reduce data-signal Data it is effective when
Section, to close the data-signal Data for deserving front pixel row before the scanning signal Gate of current pixel row cut-off.
In the specific implementation, for closing the number for deserving front pixel row before the cut-off of the scanning signal of current pixel row
It is believed that number, specifically can also be to include: by the duty ratio of the scanning signal of increase current pixel row, and diminution current pixel row
Data-signal duty ratio mode, with the scanning signal of current pixel row cut-off before, closing deserve front pixel row
Data-signal.
In the specific implementation, before the scanning signal cut-off of current pixel row, the data letter for deserving front pixel row is closed
Number, comprising: 1 to 3 microsecond before the scanning signal cut-off of current pixel row closes the data-signal for deserving front pixel row.
In the embodiment of the present invention, 1 to 3 microsecond before the scanning signal cut-off of current pixel row closes and deserves the number of front pixel row
It is believed that number, can to avoid data-signal ahead of time close duration it is too long, influence data-signal write-in and data-signal ahead of time close
It is too short to close duration, can not before next line pixel is shown, turn off lastrow pixel the problem of.
In the specific implementation, in conjunction with shown in Fig. 5 and Fig. 6, driving method further include:
Before the scanning signal Gate of current pixel row is opened, the data-signal Data for deserving front pixel row is opened.
The embodiment of the present invention also provides a kind of organic light emitting display panel, using the drive as provided by the embodiment of the present invention
Dynamic method is driven, wherein organic light emitting display panel is two pole of organic electroluminescent display panel or the self-luminous of micron formula
Pipe display panel.
The embodiment of the present invention also provides a kind of display device, including organic light emitting display such as provided in an embodiment of the present invention
Panel.
The embodiment of the present invention has the beneficial effect that: the driving side of organic light emitting display panel provided in an embodiment of the present invention
Method, comprising: progressively scan each pixel column；When current pixel row is arrived in scanning, control current pixel row is shown；It is arrived in scanning next
Before row pixel column, current pixel row is closed, that is, in the display of next pixel column, be turned off a pixel column, same period
Only one-row pixels row is shown that rest of pixels row is in non-luminous dark state, can make each pixel in pixel column
The luminous organic material most of the time of unit is in non-light emitting state, can extend the service life of luminous organic material, prolong
The service life of long organic light emitting display panel, and improve the problem of organic light emitting display panel is easy to appear branding.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of driving method of organic light emitting display panel characterized by comprising
Progressively scan each pixel column；
When current pixel row is arrived in scanning, controls the current pixel row and show；
Before scanning to next line pixel column, the current pixel row is closed.
2. driving method as described in claim 1, which is characterized in that it is described before scanning to next line pixel column, it closes
The current pixel row, comprising:
Before the scanning signal cut-off of the current pixel row, the data-signal of the current pixel row is closed.
3. driving method as claimed in claim 2, which is characterized in that the scanning signal in the current pixel row is ended
Before, the data-signal of the current pixel row is closed, comprising:
By way of increasing the duty ratio of scanning signal of the current pixel row, to believe in the scanning of the current pixel row
Number cut-off before, close the data-signal of the current pixel row.
4. driving method as claimed in claim 2, which is characterized in that the scanning signal in the current pixel row is ended
Before, the data-signal of the current pixel row is closed, comprising:
By way of reducing the duty ratio of the data-signal of the current pixel row, with sweeping in the current pixel row
Before retouching signal cut-off, the data-signal of the current pixel row is closed.
5. driving method as claimed in claim 2, which is characterized in that the scanning signal in the current pixel row is ended
Before, the data-signal of the current pixel row is closed, comprising:
By increasing the duty ratio of the scanning signal of the current pixel row, and reduce the number of the current pixel row
It is believed that number duty ratio mode, with the scanning signal of the current pixel row cut-off before, close the current pixel
Capable data-signal.
6. driving method as claimed in claim 2, which is characterized in that the scanning signal in the current pixel row is ended
Before, the data-signal of the current pixel row is closed, comprising:
1 to 3 microsecond before the scanning signal cut-off of the current pixel row, closes the institute of the current pixel row
State data-signal.
7. driving method as claimed in claim 2, which is characterized in that the driving method further include:
Before the scanning signal of the current pixel row is opened, the data letter of the current pixel row is opened
Number.
8. driving method as described in claim 1, which is characterized in that described before controlling the current pixel row and showing
Driving method further include:
It controls the display panel and carries out refreshing to set frame frequency and show, wherein each frame only shows one-row pixels row, described to set
Framing frequency is greater than 1000.
9. a kind of organic light emitting display panel, which is characterized in that using as the described in any item driving methods of claim 1-8 into
Row driving, wherein the organic light emitting display panel is that organic electroluminescent display panel or the spontaneous optical diode of micron formula are aobvious
Show panel.
10. a kind of display device, which is characterized in that including organic light emitting display panel as claimed in claim 9.
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| CN201910662644.XA CN110379365B (en) | 2019-07-22 | 2019-07-22 | Organic light-emitting display panel, display device and driving method |
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| CN201910662644.XA CN110379365B (en) | 2019-07-22 | 2019-07-22 | Organic light-emitting display panel, display device and driving method |
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| CN110379365B CN110379365B (en) | 2021-03-16 |
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| CN110379365B (en) | 2021-03-16 |
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