CN110322833A - A kind of display driving method controls the display panel luminous method and display panel - Google Patents
A kind of display driving method controls the display panel luminous method and display panel Download PDFInfo
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- CN110322833A CN110322833A CN201810276398.XA CN201810276398A CN110322833A CN 110322833 A CN110322833 A CN 110322833A CN 201810276398 A CN201810276398 A CN 201810276398A CN 110322833 A CN110322833 A CN 110322833A
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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 embodiment of the invention discloses a kind of display driving method, control the display panel luminous method and display panel, comprise determining that black plug number when driving panel shines, if the number is not zero, time, the effective display area line number, the area VBlank line number of one-row pixels are scanned according to scanning signal, determine the transmission time of LED control signal, the driver' s timing that LED control signal is determined according to the transmission time, driving panel shines under the timing control.It is effective display area line number since the transmission time can be used for controlling the line number that LED control signal transmits in a frame duration, LED control signal only can be transmitted to last line from effective display area the first row so in a frame duration, LED control signal just comes back to the first row when next frame duration arrives, therefore the line number that shines can't enter the area Vblank, the line number that shines in effective display area at any time is all constant, to can avoid brightness change caused by black plug, display effect is improved.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display driving method, control the display panel luminous side
Method and display panel.
Background technique
With the development of display technology, VR (Virtual Reality, virtual reality) product quickly enters people's lives
In.Currently, VR product is usually all shown using OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode)
Panel can generally use black insertion technology in order to avoid there is the phenomenon that smear when display picture when driving OLED.It is so-called to insert
It is black, that is, refer within the display cycle of a frame picture, control one-row pixels do not shine for a period of time, and normally send out in other times
Light, in this way, coming since LED control signal progressively scans each row pixel in accordance with the order from top to bottom from entire display panel
See always there is the pixel of some rows shining in synchronization, and the pixel of other rows does not shine.
In the prior art, for control data write-in scanning signal be also sequentially progressively scan each row pixel, and
The data of next frame picture are written to the first row pixel for the data of the last line pixel write-in former frame picture of effective display area
Between, there is a vertical blanking interval, the also referred to as area Vblank, the line number in the area Vblank is equal to scanning signal vertical
The number of lines of pixels that can sweep in the duration of blanking interval.Under the display pattern of black plug, if the line number that shines enters between vertical blanking
Every the area Vblank, the luminous line number of the reality of display panel can change, and so as to cause the variation of ELVDD electric current, and then generate IR
Drop leads to the brightness change for showing picture, and then influences display effect, so that user experience is poor.
In conclusion there is an urgent need for a kind of display driving methods at present, black insertion technology is being used in the prior art to solve
When driving OLED display panel display, display brightness is uneven, the poor technical problem of display effect.
Summary of the invention
The present invention provides a kind of display driving method, controls the display panel luminous method and display panel, to solve
In the prior art when being shown using black insertion technology driving OLED display panel, display brightness is uneven, and display effect is poor
Technical problem.
A kind of display driving method provided in an embodiment of the present invention, the method are aobvious applied to Organic Light Emitting Diode OLED
Show panel；The described method includes:
Determine the black plug number when OLED display panel being driven to shine in a frame picture；
If the black plug number is not zero, according to the time of scanning signal scanning one-row pixels, the OLED display surface
The line number of the effective display area of plate, the area the vertical blanking interval VBlank line number of the OLED display panel, determine light emitting control
The transmission time of signal；Wherein, the transmission time is for controlling the picture that the LED control signal transmits in a frame duration
Plain line number is equal to the number of lines of pixels of the effective display area；
According to the transmission time of the LED control signal, the driver' s timing of the LED control signal is determined, and in institute
It states and the OLED display panel is driven to shine under the control of driver' s timing.
Optionally, the transmission time of the LED control signal is determined by following formula:
Wherein, Tre is the transmission time of the LED control signal, and m is the line number of the effective display area, and n is described
The line number in the area VBlank, TsThe time of one-row pixels is scanned for the scanning signal.
Based on same inventive concept, the embodiment of the present invention also provide it is a kind of control the display panel luminous method, it is described
Method includes:
Obtain the driver' s timing of LED control signal；Wherein, the transmission of LED control signal described in the driver' s timing
Time be scanned according to scanning signal time of one-row pixels, the OLED display panel effective display area line number, described
What vertical blanking interval VBlank area's line number of OLED display panel determined, and the transmission time is for controlling the luminous control
The number of lines of pixels that signal processed transmits in a frame duration is equal to the number of lines of pixels of the effective display area；
Each row pixel light emission in the effective display area of OLED display panel is controlled under the driving of the driver' s timing.
The embodiment of the present invention provides a kind of display panel comprising memory and processor, wherein the memory is used for
Program instruction is stored, the processor is executed for calling the program instruction stored in the memory according to the program of acquisition
Any of the above-described kind of method.
The embodiment of the present invention provides a kind of computer storage medium, and the computer-readable recording medium storage has computer
Executable instruction, the computer executable instructions are for making the computer execute any of the above-described kind of method.
Another embodiment of the present invention also provides a kind of display driving method, and the method is applied to Organic Light Emitting Diode
OLED display panel, which comprises
According to the line number of the line number of the effective display area of the OLED display panel and the area vertical blanking interval VBlank, really
Black plug number when the OLED being driven to shine surely in a frame picture, and the luminous control corresponding with the black plug number
The period of signal processed；Wherein, the black plug number is used to control the line number to shine in the area VBlank at any time not
Become；
According to the period of the black plug number and/or the LED control signal, the drive of the LED control signal is determined
Dynamic timing, and drive the OLED display panel to shine under the control of the driver' s timing.
Optionally, the black plug number be equal to total line number in the effective display area and the area VBlank with it is described
The ratio of the line number in the area VBlank.
Optionally, the period of the LED control signal is equal to the line number in the area VBlank and the scanning signal scans
The product of the time of one-row pixels.
Based on same inventive concept, another embodiment of the present invention also provide it is a kind of control the display panel luminous method,
The described method includes:
Obtain the driver' s timing of LED control signal；Wherein, the period of LED control signal described in the driver' s timing
It is that the time of one-row pixels, the line number of the effective display area of the OLED display panel, the OLED are scanned according to scanning signal
What vertical blanking interval VBlank area's line number of display panel determined, and the period is described at any time for controlling
The line number to shine in the area VBlank is constant；
Each row pixel light emission in the effective display area of OLED display panel is controlled under the driving of the driver' s timing.
Another embodiment of the present invention also provides a kind of display panel comprising memory and processor, wherein the storage
Device is for storing program instruction, and the processor is for calling the program instruction stored in the memory, according to the journey of acquisition
Sequence executes any of the above-described kind of method.
Another embodiment of the present invention provides a kind of computer storage medium, the computer-readable recording medium storage has meter
Calculation machine executable instruction, the computer executable instructions are for making the computer execute any of the above-described kind of method.
In the embodiment of the present invention, black plug number when driving OLED display panel shines in one frame picture is determined, if black plug
Number is not zero, and scans the time of one-row pixels, the line number of effective display area, vertical blanking interval VBlank according to scanning signal
Area's line number determines the transmission time of LED control signal, according to the transmission time, determines the driver' s timing of LED control signal,
And then OLED display panel is driven to shine under the control of the driver' s timing.
Since the transmission time of LED control signal can be used for controlling the picture that LED control signal transmits in a frame duration
Plain line number is equal to the number of lines of pixels of the effective display area, in this way, LED control signal just can be from effective in a frame duration
The first row pixel of viewing area is transmitted to last line pixel, and LED control signal just comes back to when next frame duration arrives
Therefore, and the problem of illuminated rows number enters the area Vblank is not present, the picture to shine in effective display area at any time in the first row
Plain line number is all constant, so as to avoid the variation of the display brightness due to caused by black plug, so that the poor technology of display effect is asked
Topic.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the picture element matrix schematic diagram of OLED display panel provided in an embodiment of the present invention；
Luminous schematic diagram before Fig. 2 a enters the area VBlank for the line number that shines in the prior art in display panel；
Fig. 2 b is that luminous line number enters the luminous schematic diagram behind the area VBlank in the prior art；
Fig. 2 c counts up to the luminous schematic diagram when all standing area VBlank for illuminated rows in the prior art；
Fig. 3 is the changing rule schematic diagram of ELVDD electric current in the prior art；
Fig. 4 is the flow diagram for the display driving method that the embodiment of the present invention one provides；
Fig. 5 a is the driving of scanning signal and LED control signal in the embodiment of the present invention one when black plug number is one time
Time diagram；
Fig. 5 b is the driving of scanning signal and LED control signal in the embodiment of the present invention one when black plug number is secondary
Time diagram；
Fig. 6 is the flow diagram for controlling the display panel luminous method that the embodiment of the present invention one provides；
Fig. 7 is the flow diagram of display driving method provided by Embodiment 2 of the present invention；
Fig. 8 is the driver' s timing schematic diagram of scanning signal and LED control signal in the embodiment of the present invention two；
After period of the Fig. 9 for the LED control signal of the method setting in the embodiment of the present invention two, OLED display panel
Shine schematic diagram；
Figure 10 is the flow diagram provided by Embodiment 2 of the present invention for controlling the display panel luminous method；
Figure 11 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
One step it is described in detail, it is clear that described embodiment, only a part of the embodiment of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.
Fig. 1 is the picture element matrix schematic diagram of OLED display panel provided in an embodiment of the present invention, as shown in Figure 1, it is assumed that
Include the picture element matrix of N row M column in OLED display panel, in the picture element matrix every one-row pixels share row electrode (
Claim scan electrode), row driving unit is each row pixel line of input signal by row electrode, and each column pixel shares a column electrode
(also referred to as data electrode), column driving unit (also referred to as data drive unit) are that each column pixel inputs column signal by column electrode.
In the embodiment of the present invention, row driving unit can be divided into scan drive cell and luminous driving unit again, be respectively used to
Input scanning signal Sn and LED control signal En.Wherein, scanning signal Sn is being scanned for controlling data write-in one-row pixels
In the timing of signal Sn, low level control write-in, high level control is not written into；LED control signal En is for controlling one-row pixels
It shines, in the timing of LED control signal En, low level indicates that control shines, and high level indicates that control does not shine.General feelings
The time cycle (duration shared by the low level i.e. in a cycle of En) of En is the time cycle (a cycle of Sn of Sn under condition
Duration shared by middle low level) integral multiple, after this indicates the data of write-in multirow pixel, another rise shines.
Assuming that the number of lines of pixels in effective display area is m row, the area VBlank is n row, in the prior art, in black plug mode
Under, the theory in a frame picture shines line number equal to (m+n) * t.Wherein, t is black plug ratio, that is, one-row pixels is directed to, in a frame
Time span in, the ratio of luminous duration and a frame duration.
It is practical to send out before luminous line number enters the area VBlank, but the first row pixel in effective display area starts to shine
Light line number will be gradually reduced.Fig. 2 a is the luminous schematic diagram before luminous line number enters the area VBlank in display panel, and Fig. 2 b is
Luminous line number enters the luminous schematic diagram behind the area VBlank, and Fig. 2 c is luminous signal when illuminated rows count up to all standing area VBlank
Figure.
Specifically as shown in Fig. 2 a to Fig. 2 c, 201 be effective display area, and dash area 202 is the reality in effective display area
Border shines line number, and 203 be the area VBlank.In fig. 2 a, practical luminous line number is equal to theoretical luminous line number.Shown in Fig. 2 b, hair
Light line number initially enters the area VBlank, and the first row pixel starts to shine not yet at this time, and practical luminous line number is less than theoretical shine
Line number.With the variation of time, practical shine is gradually reduced, and the line number that shines gradually covers the area VBlank, or even is completely covered
The area VBlank, until the first row pixel starts after shining, practical luminous line number is remained unchanged.It is finished when former frame picture is shown
Afterwards, practical luminous line number starts to be gradually increased again, until the line number that shines leaves the area VBlank.During this, effective display area
In each pixel the as shown in Figure 3 rule variation of ELVDD electric current, this will make the brightness change of display panel, generates mura and lacks
It falls into.
To solve the above-mentioned problems, a kind of display driving method is provided in the embodiment of the present invention one, as shown in figure 4, the party
Method includes the following steps S401 to step S403:
Step S401: the black plug number when OLED display panel being driven to shine in a frame picture is determined；
Step S402: if the black plug number is not zero, time, described of one-row pixels is scanned according to scanning signal
The line number of the effective display area of OLED display panel, the area the vertical blanking interval VBlank line number of the OLED display panel, really
Determine the transmission time of LED control signal；Wherein, the transmission time is for controlling the LED control signal in a frame duration
The number of lines of pixels of interior transmission is equal to the number of lines of pixels of the effective display area；
Step S403: according to the transmission time of the LED control signal, when determining the driving of the LED control signal
Sequence, and drive the OLED display panel to shine under the control of the driver' s timing.
Specifically, in embodiments of the present invention, however, it is determined that display panel display picture Shi Yi frame picture in need into
The one or many black plugs of row, then can determine the transmission time of LED control signal by following formula two:
Wherein, Tre is the transmission time of LED control signal, and m is the line number of effective display area, and n is the row in the area VBlank
Number, TsThe time of one-row pixels is scanned for scanning signal, can be determined according to the resolution ratio and scan frequency of display panel.
After Fig. 5 a and Fig. 5 b illustrate the transmission time using the setting LED control signal of above-mentioned formula two, scanning
The driver' s timing schematic diagram of signal and LED control signal.In fig 5 a, the line number of the effective display area is 16 rows, the area VBlank
Line number be 4 rows, it is assumed that a length of 20 chronomeres when being a frame, then scanning signal scanning one-row pixels time TsDeng
Only black plug is primary in the 1/20 of a frame duration, one frame picture, and black plug ratio be 2/5 (i.e. in a frame duration, one-row pixels
It is luminous when a length of 8 chronomeres, the duration that do not shine is equal to 12 chronomeres) in the case where, it may be determined that set out light-operated
The transmission time Tre=1.25Ts of signal processed.It can be seen from Fig. 5 a in the duration of a frame, LED control signal just may be used
16th row pixel is transmitted to by the first row pixel, LED control signal just comes back to the first row when next frame arrives, therefore,
The transmission time of LED control signal is set in compared with the prior art the scheme of the integral multiple of Ts or Ts, the present invention is implemented
In example one, and the problem of illuminated rows number enters the area Vblank is not present, it is in office when former frame picture is converted to next frame picture
At one moment, number of lines of pixels actually luminous is basically unchanged in effective display area.
In figure 5b, the black plug number in a frame picture is changed to twice, and the case where black plug ratio remains at 3:2
Under, according to formula two, the transmission time Tre of LED control signal is set as 1.25Ts, when former frame picture is to next frame picture
When conversion, same the problem of entering the area Vblank there is no the line number that shines, at any one time, actually shine in effective display area
Number of lines of pixels is also basically unchanged.It will thus be seen that when according to above-mentioned formula two it is equally applicable black plug number be multiple feelings
Under condition.
Under actual application scenarios, the number of lines of pixels of effective display area is far longer than 16 rows, black plug number and black plug ratio
Example can also be specifically arranged according to actual needs by those skilled in the art, but in other of scanning signal and LED control signal
In the case that time sequence parameter is constant, the method provided in one through the embodiment of the present invention, when the transmission of LED control signal is set
Between, it can solve because the line number that shines enters the area VBlank, the ELVDD curent change of each row pixel, and cause to show picture brightness
The technical issues of variation.
The embodiment of the present invention one also provide it is a kind of control the display panel luminous method, as shown in fig. 6, this method include such as
Lower step S601 to step S602:
Step S601: the driver' s timing of LED control signal is obtained；Wherein, light emitting control described in the driver' s timing is believed
Number transmission time be scanned according to scanning signal time of one-row pixels, the OLED display panel effective display area row
What vertical blanking interval VBlank area's line number of several, the described OLED display panel determined, and the transmission time is for controlling institute
State the number of lines of pixels that the number of lines of pixels that LED control signal transmits in a frame duration is equal to the effective display area；
Step S602: each row picture in the effective display area of OLED display panel is controlled under the driving of the driver' s timing
Element shines.
Wherein, in step s 601, this parameter of the transmission time of LED control signal is determined particular by formula two
, details are not described herein again.
Second embodiment of the present invention provides another display driving methods, as shown in fig. 7, this method comprises the following steps S701
To step S702:
Step S701: according to the line number of the effective display area of the OLED display panel and the area vertical blanking interval VBlank
Line number, determine the black plug number when OLED being driven to shine in a frame picture, and it is corresponding with the black plug number
The period of the LED control signal；Wherein, the black plug number shines for controlling in the area VBlank at any time
Line number it is constant；
Step S702: according to the period of the black plug number and/or the LED control signal, the light emitting control is determined
The driver' s timing of signal, and drive the OLED display panel to shine under the control of the driver' s timing.
Specifically, in step s 701, determining black plug number and light emitting control especially by following formula three and formula four
The period of signal:
Wherein, N is black plug number, and m is the line number of effective display area, and n is the line number in the area VBlank, and Te is light emitting control letter
Number period, TsThe time of one-row pixels is scanned for scanning signal, can be determined according to the resolution ratio and scan frequency of display panel.
In the embodiment of the present invention two, luminous line number is solved in such a way that black plug number is set and enters the area VBlank, is led
The technical issues of causing the luminous line number of the reality in effective display area to change.In this way, setting nT for the period of LED control signals
Afterwards, the area VBlank includes a complete En period, thus, the luminous line number of the reality in effective display area is all protected at any one time
Hold constant, the ELVDD electric current of pixel is constant, and entire display panel there will not be the variation of brightness when showing picture.
After Fig. 8 illustrates the period using the LED control signal of the method setting in the embodiment of the present invention two,
The driver' s timing schematic diagram of scanning signal and LED control signal.In fig. 8, the line number of effective display area is 16 rows, VBlank
The line number in area is 4 rows, it is assumed that when a length of 20 chronomeres of a frame, then the time T of scanning signal scanning one-row pixelssDeng
In the 1/20 of a frame duration, according to above-mentioned formula three and formula four it is found that black plug number is 5 times, the period of LED control signal
Te=4Ts, setting black plug ratio is 3/4, as shown in Figure 8, when former frame picture is converted to next frame picture, effective display area
In reality shine line number remain that 12 rows are constant.
After Fig. 9 illustrates the period using the LED control signal of the method setting in the embodiment of the present invention two,
The luminous schematic diagram of OLED display panel, in Fig. 9,901 be effective display area, and 902 be the area VBlank, and 903 and 904 are respectively
The number of lines of pixels for not shining and shining in a cycle of LED control signal En.As shown in figure 9, since the area VBlank includes one
A complete En period, thus, it shines in the area Blank and non-luminous number of lines of pixels is fixed always, thus, in effective display area
Actually luminous number of lines of pixels is also fixed.
The embodiment of the present invention two also provides another kind and controls the display panel luminous method, as shown in Figure 10, the method
Include the following steps S1001 to step S1002:
Step S1001: the driver' s timing of LED control signal is obtained；Wherein, light emitting control described in the driver' s timing
The period of signal is the row that the time of one-row pixels, the effective display area of the OLED display panel are scanned according to scanning signal
What vertical blanking interval VBlank area's line number of several, the described OLED display panel determined, and the period is for controlling any
The line number to shine in the area VBlank described in moment is constant；
Step S1002: each row in the effective display area of OLED display panel is controlled under the driving of the driver' s timing
Pixel light emission.
Specifically, the period of LED control signal is specifically according in above-mentioned formula three and formula four in step S1001
Method determine, details are not described herein again.
Based on same inventive concept, the embodiment of the present invention also provides another display panel, as shown in figure 11, the display
Panel 1100 may include central processing unit (Center Processing Unit, CPU) 1101, memory 1102, input/defeated
Equipment 1103 and bus system 1104 etc. out.Wherein, input equipment may include keyboard, mouse, touch screen etc., and output equipment can
To include display equipment, such as liquid crystal display (Liquid Crystal Display, LCD), cathode-ray tube (Cathode
Ray Tube, CRT) etc..
Memory may include read-only memory (ROM) and random access memory (RAM), and provide storage to processor
The program instruction and data stored in device.In embodiments of the present invention, memory can be used for storing above-mentioned display driving method
And/or control the display panel the program of luminous method.
Processor is by the program instruction for calling memory to store, and processor according to the program instruction of acquisition for executing
It states display driving method and/or controls the display panel luminous method.
Based on same inventive concept, the embodiment of the invention provides a kind of computer storage mediums, for being stored as
Computer program instructions used in display panel are stated, it includes for executing above-mentioned display driving method and/or control display surface
The program of the luminous method of plate.
The computer storage medium can be any usable medium or data storage device that computer can access, packet
Include but be not limited to magnetic storage (such as floppy disk, hard disk, tape, magneto-optic disk (MO) etc.), optical memory (such as CD, DVD,
BD, HVD etc.) and semiconductor memory (such as it is ROM, EPROM, EEPROM, nonvolatile memory (NAND FLASH), solid
State hard disk (SSD)) etc..
By above content it can be seen that
In the embodiment of the present invention, black plug number when driving OLED display panel shines in one frame picture is determined, if black plug
Number is not zero, and scans the time of one-row pixels, the line number of effective display area, vertical blanking interval VBlank according to scanning signal
Area's line number determines the transmission time of LED control signal, according to the transmission time, determines the driver' s timing of LED control signal,
And then OLED display panel is driven to shine under the control of the driver' s timing.
Since the transmission time of LED control signal can be used for controlling the picture that LED control signal transmits in a frame duration
Plain line number is equal to the number of lines of pixels of the effective display area, in this way, LED control signal can only be shown from effective in a frame duration
Show that the first row pixel in area is transmitted to last line pixel, LED control signal just comes back to the when next frame duration arrives
Therefore, and the problem of illuminated rows number enters the area Vblank is not present, the pixel to shine in effective display area at any time in a line
Line number is all constant, so as to avoid the variation of the display brightness due to caused by black plug, so that the technical problem that display effect is poor.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the meter of computer usable program code that the present invention, which can be used at one or more,
The computer journey implemented in calculation machine usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of sequence product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The function of being specified in present one process of flow chart or more than two one box of process and/or block diagram or more than two boxes
Device.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
The manufacture of device is enabled, which realizes in one side of one process of flow chart or more than two processes and/or block diagram
The function of being specified in frame or more than two boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one process of flow chart or more than two processes and/or box
The step of function of being specified in one box of figure or more than two boxes.
Although alternative embodiment of the invention has been described, created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So the following claims are intended to be interpreted as include can
It selects embodiment and falls into all change and modification of the scope of the invention.
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 (11)
1. a kind of display driving method, which is characterized in that the method is applied to Organic Light Emitting Diode OLED display panel, institute
The method of stating includes:
Determine the black plug number when OLED display panel being driven to shine in a frame picture；
If the black plug number is not zero, time of one-row pixels, the OLED display panel are scanned according to scanning signal
The line number of effective display area, the area the vertical blanking interval VBlank line number of the OLED display panel, determine LED control signal
Transmission time；Wherein, the transmission time is for controlling the pixel column that the LED control signal transmits in a frame duration
Number is equal to the number of lines of pixels of the effective display area；
According to the transmission time of the LED control signal, the driver' s timing of the LED control signal is determined, and in the drive
The OLED display panel is driven to shine under the control of dynamic timing.
2. the method according to claim 1, wherein determining the biography of the LED control signal by following formula
The defeated time:
Wherein, Tre is the transmission time of the LED control signal, and m is the line number of the effective display area, and n is described
The line number in the area VBlank, TsThe time of one-row pixels is scanned for the scanning signal.
3. a kind of control the display panel luminous method, which is characterized in that the described method includes:
Obtain the driver' s timing of LED control signal；Wherein, the transmission time of LED control signal described in the driver' s timing
It is that the time of one-row pixels, the line number of the effective display area of the OLED display panel, the OLED are scanned according to scanning signal
What vertical blanking interval VBlank area's line number of display panel determined, and the transmission time is for controlling the light emitting control letter
Number number of lines of pixels transmitted in a frame duration is equal to the number of lines of pixels of the effective display area；
Each row pixel light emission in the effective display area of OLED display panel is controlled under the driving of the driver' s timing.
4. a kind of display driving method, which is characterized in that the method is applied to Organic Light Emitting Diode OLED display panel, institute
The method of stating includes:
According to the line number of the line number of the effective display area of the OLED display panel and the area vertical blanking interval VBlank, determines and drive
Move the black plug number when OLED shines in one frame picture, and the light emitting control letter corresponding with the black plug number
Number period；Wherein, the black plug number is used to control the line number to shine in the area VBlank at any time constant；
According to the period of the black plug number and/or the LED control signal, when determining the driving of the LED control signal
Sequence, and drive the OLED display panel to shine under the control of the driver' s timing.
5. according to the method described in claim 4, it is characterized in that, the black plug number is equal to the effective display area and described
The ratio of total line number in the area VBlank and the line number in the area VBlank.
6. according to the method described in claim 5, it is characterized in that, the period of the LED control signal be equal to the VBlank
The product of the time of the line number in area and scanning signal scanning one-row pixels.
7. a kind of control the display panel luminous method, which is characterized in that the described method includes:
Obtain the driver' s timing of LED control signal；Wherein, the period of LED control signal described in the driver' s timing is root
It is shown according to the time of scanning signal scanning one-row pixels, the line number of the effective display area of the OLED display panel, the OLED
What vertical blanking interval VBlank area's line number of panel determined, and the period is for controlling the area VBlank at any time
In shine line number it is constant；
Each row pixel light emission in the effective display area of OLED display panel is controlled under the driving of the driver' s timing.
8. a kind of display panel characterized by comprising
Memory, for storing program instruction；
Processor is executed according to the program of acquisition as in claim 3 for calling the program instruction stored in the memory
The method.
9. a kind of computer storage medium, which is characterized in that the computer-readable recording medium storage has computer executable
Instruction, the computer executable instructions are for making the computer execute method as described in claim 3.
10. a kind of display panel characterized by comprising
Memory, for storing program instruction；
Processor is executed according to the program of acquisition as in claim 7 for calling the program instruction stored in the memory
The method.
11. a kind of computer storage medium, which is characterized in that the computer-readable recording medium storage has computer executable
Instruction, the computer executable instructions are for making the computer execute method as described in claim 7.
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