CN109064976A - Driving method, driving circuit and the display device of display panel - Google Patents
Driving method, driving circuit and the display device of display panel Download PDFInfo
- Publication number
- CN109064976A CN109064976A CN201811294496.2A CN201811294496A CN109064976A CN 109064976 A CN109064976 A CN 109064976A CN 201811294496 A CN201811294496 A CN 201811294496A CN 109064976 A CN109064976 A CN 109064976A
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- pixel unit
- row pixel
- display panel
- driving
- row
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Classifications
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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]
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
Abstract
The present invention provides a kind of driving method of display panel, display panel includes M row pixel unit, since showing the second frame image, for every frame image, driving method includes the edge pattern driving stage and target image driving stage successively carried out, the stage is driven in edge pattern, N row pixel unit before successively driving, and successively N row pixel unit after driving, so that preceding N row pixel unit and rear N row pixel unit showing edge figure, wherein, M > 2N；The stage is driven in target image, successively drives N+1 row pixel unit to M-N row pixel unit displaying target image.The present invention also provides a kind of driving circuit of display panel and including the display device of the driving circuit, displaying panel driving method can increase the charging time of pixel unit drive circuit element, reduce uneven color difference, promote display image quality.
Description
Technical field
The present invention relates to field of display technology, and in particular, to a kind of driving method of display panel, a kind of display panel
Driving circuit and display device including the driving circuit.
Background technique
Existing virtual reality (VR, Virtual Reality) product is used as display screen using display panel, if display
The display frequency of panel is lower, then will appear smear when showing dynamic menu, therefore, in order to make user's viewing more smooth,
Need display panel that there is high-frequency picture to show that still, the display frequency of display panel is higher, diode in display panel
Driving circuit element charging time it is shorter, show that the phenomenon that uneven color difference (mura) occur can be more serious in picture.
How the driving method of display panel for virtual reality products a kind of is designed, not change display frequency
In the case of the problem of reducing uneven color difference phenomenon in display picture, becoming this field urgent need to resolve.
Summary of the invention
The purpose of the present invention is to provide a kind of driving method of display panel, a kind of display panel driving circuit and
Display device including the driving circuit, the displaying panel driving method can increase filling for pixel unit drive circuit element
The electric time reduces uneven color difference, promotes display image quality.
In order to solve the above technical problems, providing a kind of driving method of display panel, institute as first aspect of the present invention
Stating display panel includes M row pixel unit, wherein since showing the second frame image, for every frame image, and the driving
Method includes the edge pattern driving stage and target image driving stage successively carried out,
The stage is driven in the edge pattern, N row pixel unit before successively driving, and successively N row pixel list after driving
Member, so that preceding N row pixel unit and rear N row pixel unit showing edge figure, wherein M > 2N；
The stage is driven in the target image, N+1 row pixel unit to M-N row pixel unit is successively driven to show mesh
Logo image.
Preferably, the preceding N row pixel unit and it is described after edge pattern shown by N row pixel unit be black.
Preferably, the display panel includes organic LED display panel.
Preferably, in the preceding N row pixel unit and the rear N row pixel unit showing edge figure, light emitting control
Signal is low level signal.
Preferably, the frame frequency of the display panel is 90Hz or 120Hz, and the value of the N is 100 to 150.
As the second aspect of the present invention, a kind of driving circuit of display panel is provided, the display panel includes M row picture
Plain unit, wherein the driving circuit includes edge drive module and driver module,
The edge drive module is used for since the second frame image, the N row before the edge pattern driving stage successively drives
Pixel unit, and successively N row pixel unit after driving, so that preceding N row pixel unit and rear N row pixel unit are shown respectively
Edge pattern, wherein M > 2N；
The driver module is used to drive N+1 row pixel unit to M-N row picture in the target image driving stage
Plain unit displaying target image.
Preferably, the display panel includes organic LED display panel, and the driving circuit further includes shining
Control module, the light emitting control module is for providing LED control signal, in the preceding N row pixel unit and the rear N row
When pixel unit showing edge figure, the light emitting control is low level signal.
As third aspect of the present invention, a kind of display device is provided, the display device includes display panel and driving
Circuit, wherein the driving circuit is driving circuit provided by the present invention.
Preferably, the display panel resolution ratio is 2560 × 1440.
Preferably, the display device includes glasses frame shell and display panel, and the display panel is arranged in the eye
In frame shell.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow diagram of the driving method of display panel provided by the present invention；
Fig. 3 is the drive circuit schematic diagram of display panel provided by the present invention；
Fig. 2 is the timing diagram of the driving method of display panel provided by the present invention；
Fig. 4 is that the pixel unit of display panel provided by the present invention presses row distribution schematic diagram.
Description of symbols
101: edge drive module 102: driver module
103: light emitting control module
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the prior art, since the display frequency of display panel is higher, the driving circuit of light emitting diode in display panel
The charging time of element is shorter, cause display picture in there is the phenomenon that uneven color difference can be more serious.
Inventor the study found that for image shown by virtual reality display device (usually virtual reality glasses) and
Speech, have the characteristics that one it is common: any one frame image includes the edge pattern positioned at image head and the tail, so that mesh
The shape of mark display picture is similar to real glasses, since edge pattern is all identical, and to the target of intermediate region
Figure is displayed without influence, and inventor considers to carry out by the region to the edge pattern of correspondence image head and the tail on display panel
It drives simultaneously, in the case where a frame image duration is constant, may be implemented to extend the driving circuit member of light emitting diode
The charging time of part, to solve above-mentioned technical problem.
In view of this, providing a kind of driving method of display panel, the display surface as first aspect of the present invention
Plate includes viewing area and the M row pixel unit that the viewing area is arranged in, wherein since showing the second frame image, the drive
Dynamic method includes edge pattern driving stage (step S1) and target image driving stage (step S2) successively carried out, such as Fig. 1
Shown, the driving method includes:
Step S1, N row pixel unit after successively being driven while N row pixel unit before successively driving, so that preceding N row picture
Plain unit and rear N row pixel unit showing edge figure, wherein M > 2N；
Step S2, successively drive N+1 row pixel unit to M-N row pixel unit displaying target image.
As described above, executing step S1 and step S2, the showing edge figure in the viewing area of the display panel is realized
And target image, it is equivalent to while showing edge pattern represented by the rear N row pixel unit of previous frame image and a later frame figure
Edge pattern represented by the preceding N row pixel unit of picture.For human eye, frame rate is higher, imitates to the visual display of acquisition
Fruit does not influence.What human eye was seen is still the image similar with shape of glasses.
Specifically, since the preceding N row pixel unit and the rear N row pixel unit drive simultaneously, then in timing diagram
In, as shown in figure 3, being equivalent to sweeping for the rear N row for previous frame picture (such as first frame (that is, 1st Frame in Fig. 3)) occur
The case where retouching the sweep time overlapping of the preceding N row of time and next frame picture (that is, the second frame, 2nd Frame) in Fig. 3, class
As, the second frame picture (2nd Frame) and third frame picture (3rd Frame), third frame picture (3rd Frame) and the 4th
Also the case where will appear the overlapping of above-mentioned sweep time between frame picture (4th Frame) and subsequent adjacent two frames picture.
Therefore, the preceding N row pixel unit of display panel and rear N row pixel unit are driven simultaneously, is equivalent in driving N row
In the time of pixel unit, complete driving to 2N row pixel unit, compared with the existing technology, in sequence since one side by
In other words row driving, the time that the present invention saves driving N row pixel unit are equivalent in the same time, present invention driving
M-N row pixel unit, and the prior art drives M row pixel unit.It follows that in the feelings that remain unchanged of frame frequency of display panel
Under condition, the present invention extends the time of independent one-row pixels unit, so that the driving circuit element of pixel unit fills
The electric time extends, and for entire display panel, reduces uneven color difference and occurs, promote display image quality.
In the present invention, the arrangement mode of the viewing area pixel unit of display panel are as follows: the line number of pixel unit greatly with picture
The columns of plain unit, as an implementation, the resolution ratio of the display panel are 2560 × 1440 namely the M value
It is 2560.
In the present invention, the preceding N row pixel unit and it is described after edge pattern shown by N row pixel unit be black
Color.When the pixel unit of display panel is shown, show that energy consumption required for black is minimum, therefore, the edge pattern
For black, energy consumption of the display panel in display can be reduced.
For the display panel applications in virtual reality device, the edge pattern of the black just forms virtual glasses side
Frame improves the contrast with target image, and then promotes user experience.
The present invention for the display panel type without limitation, it is described for example, be preferably carried out mode as one kind
Display panel includes organic LED display panel.
Further, the display panel is organic LED display panel, then in the preceding N row pixel unit and
After described when N row pixel unit showing edge figure, the LED control signal that driving Organic Light Emitting Diode is lighted is low level
Signal, that is, the LED control signal low level is effective.
In the present invention, when driving N+1 row pixel unit to M-N row pixel unit displaying target image, the hair
Optical control signal is also low level signal, this is described in the form of embodiment below in association with Fig. 3, is not gone to live in the household of one's in-laws on getting married first here
It states.
The present invention for preceding N row pixel unit and rear N row pixel unit specific line number with no restrictions, such as one kind
Embodiment, the value of the N are 100 to 150, N in the value range, the side that the display panel of virtual reality glasses is shown
Edge figure is conducive to promote user experience closest to the width of true rims of spectacle.
In the present invention, the frame frequency of the display panel is 90Hz or 120Hz, and the display panel with the frequency is applicable in
In virtual reality display device.
It is below 2560 × 1440 and frame by organic LED display panel, resolution ratio of the display panel
For frequency is 120Hz, carried out in conjunction with the course of work of Fig. 3, Fig. 4 to the driving method of the display panel provided by the present invention
Description:
As shown in figure 3, what Source Output indicated in figure is source output, that is, be the display number that each frame shows picture
According to the present invention drives the pixel unit of the display panel by the way of the driving of array substrate row, wherein as a kind of reality
Mode is applied, N value is 150 in figure, then M-N value is 2410.Specifically, as shown in figure 4, the resolution ratio of the display panel is
2560 × 1440, wherein the 1st to 150 row pixel unit, the 2411st to 2560 row pixel unit are used for showing edge figure, the
151 to 2410 row pixel units are used for displaying target image.
When executing the driving method, gate driving initial signal GSTV and light emitting control initial signal are provided first
ESTV.For the display panel, gate drive signal and LED control signal are all that low level is effective.Provide grid
After pole drives initial signal, gate driving circuit sequentially generates gate drive signal.
By can clearly find out in Fig. 3, since showing the second frame image (the 2nd frame in Fig. 3), preceding N row grid
Line and rear N row grid line receive simultaneously gate drive signal (merely illustrated in Fig. 3 first three rows scanning signal Gout1, Gout2,
Scanning signal GoutM-1, GoutM-2, GoutM-3 of Gout3 and rear three row.
In above-mentioned driving method, while preceding 150 row pixel unit and rear 150 row pixel unit are driven, is equivalent to and is holding
While the driving of the 2411st~2560 row in row first frame picture, driving to the 1st~150 row of the second frame picture, class
As, while executing the driving of the 2411st~2560 row in the second frame picture, to the 1st~150 row of third frame picture
Driving, and so on, repeat no more.
By above-mentioned driving process it is found that in adjacent two frames picture, it is equivalent to driving previous frame picture the 2411st~2560
While (totally 150 row) row pixel unit, the driving of the 1st~150 row pixel unit to adjacent next frame picture is completed, from
And the time that adjacent the 1st~150 row of next frame picture is operated alone is saved, and also that is, for same picture, flower
Take the time of 2410 row pixel arrays of driving, completes the driving to 2560 row pixel arrays and scan.
As described above, being that 120Hz drives display panel for resolution ratio is 2560 × 1440 with the frame frequency of display panel
Time needed for any one-row pixels unit calculates as follows (1) to (3):
3.46 μ s-3.2 μ s=0.26 μ s (3)
Wherein, formula (1) is the time for driving one-row pixels unit in the prior art, and formula (2) is present invention driving one
The time of row pixel unit, as shown in formula (3), the present invention drives the time of one-row pixels unit to drive a line than the prior art
The time of pixel unit more 0.26 μ s.It follows that being equivalent in the case where the frame frequency of display panel remains unchanged, the present invention
The time of independent one-row pixels unit is extended, so that the charging time of the driving circuit element of pixel unit extends,
For entire display panel, reduces uneven color difference and occur, promote display image quality.
As the second aspect of the present invention, a kind of driving circuit of display panel is provided, the display panel includes M row
Pixel unit, wherein as shown in Fig. 2, the driving circuit includes edge drive module 101 and driver module 102.
Since edge drive module 101 be used for showing the second frame image, the N before the edge pattern driving stage successively drives
Row pixel unit, and successively N row pixel unit after driving, so that preceding N row pixel unit and rear N row pixel unit are shown respectively
Show edge pattern, wherein M > 2N.
Driver module 102 is used to drive N+1 row pixel unit to M-N row pixel in the target image driving stage
Unit displaying target image.
The driving circuit shows the driving of the display panel with realizing for executing above-mentioned driving method.Wherein,
N row pixel unit simultaneously, is equivalent to and is driving after successively driving while to the preceding N row pixel unit for successively driving display panel
In the time of N row pixel unit, completes the driving to 2N row pixel unit and opened in sequence from one side compared with the existing technology
Beginning drives line by line, and in other words the time that the present invention saves driving N row pixel unit is equivalent in the same time, the present invention
M-N row pixel unit is driven, and the prior art drives M row pixel unit.It follows that the frame frequency in display panel remains unchanged
In the case where, the present invention extends the time of independent one-row pixels unit, so that the driving circuit element of pixel unit
Charging time extend, for entire display panel, reduce uneven color difference and occur, promote display image quality.
The present invention for the display panel type without limitation, it is described for example, be preferably carried out mode as one kind
Display panel includes organic LED display panel.
Further, the display panel is organic LED display panel, in the present invention, the driving circuit
It further include light emitting control module 103, light emitting control module 103 is for providing LED control signal, in the preceding N row pixel unit
When with the rear N row pixel unit showing edge figure, the light emitting control is low level signal.
As third aspect of the present invention, a kind of display device is provided, the display device includes display panel and drive
Dynamic circuit, wherein the driving circuit is driving circuit provided by the present invention.The frame frequency of the display panel be 90Hz or
120Hz, the display panel resolution ratio are 2560 × 1440.
Further, the display device includes virtual reality display device.Specifically, the display device can be void
Quasi- Reality glasses, that is, the display device includes glasses frame shell and the display panel that is arranged in the spectacle-frame ontology.
Wherein, as shown in figure 3, all including edge pattern and target in each frame picture that the virtual reality glasses are shown
Image, the graphical visual effect of formation are able to ascend user experience close to true glasses.
In addition, since the virtual reality display device uses driving circuit provided by the present invention and display panel
Driving method therefore in use by common drive, realize the preceding N row pixel unit to display panel and rear N row pixel
Unit drives simultaneously, on the basis of not changing frame frequency, not influencing Dynamically Announce, when extending the charging of every one-row pixels unit
Between, to reduce uneven color difference, improve display image quality.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of driving method of display panel, the display panel includes M row pixel unit, which is characterized in that from display the
Two frame images start, and for every frame image, the driving method includes the edge pattern driving stage successively carried out and mesh
Logo image drives the stage,
The stage is driven in the edge pattern, N row pixel unit before successively driving, and successively N row pixel unit after driving, with
So that preceding N row pixel unit and rear N row pixel unit showing edge figure, wherein M > 2N；
The stage is driven in the target image, successively drives N+1 row pixel unit to M-N row pixel unit displaying target figure
Picture.
2. driving method according to claim 1, which is characterized in that the preceding N row pixel unit and the rear N row pixel
Edge pattern shown by unit is black.
3. driving method according to claim 1, which is characterized in that the display panel includes that Organic Light Emitting Diode is aobvious
Show panel.
4. driving method according to claim 3, which is characterized in that in the preceding N row pixel unit and the rear N row picture
When plain unit showing edge figure, LED control signal is low level signal.
5. driving method as claimed in any of claims 1 to 4, which is characterized in that the frame frequency of the display panel
For 90Hz or 120Hz, the value of N is 100 to 150.
6. a kind of driving circuit of display panel, the display panel includes M row pixel unit, which is characterized in that the driving
Circuit includes edge drive module and driver module,
Since the edge drive module be used for showing the second frame image, the N row before the edge pattern driving stage successively drives
Pixel unit, and successively rear N row pixel unit, so that preceding N row pixel unit and rear N row pixel unit distinguish showing edge
Figure, wherein M > 2N；
The driver module is used to drive N+1 row pixel unit to M-N row pixel list in the target image driving stage
First displaying target image.
7. driving circuit according to claim 6, which is characterized in that the display panel includes that Organic Light Emitting Diode is aobvious
Show that panel, the driving circuit further include light emitting control module, the light emitting control module is used to provide LED control signal,
When the preceding N row pixel unit and the rear N row pixel unit showing edge figure, the light emitting control is low level signal.
8. a kind of display device, the display device includes display panel and driving circuit, which is characterized in that the driving circuit
For driving circuit described in claim 6 or 7.
9. display device according to claim 8, which is characterized in that
The display panel resolution ratio is 2560 × 1440.
10. display device according to claim 8 or claim 9, which is characterized in that the display device further includes spectacle-frame shell
Body, the display panel are arranged in the glasses frame shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294496.2A CN109064976A (en) | 2018-11-01 | 2018-11-01 | Driving method, driving circuit and the display device of display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294496.2A CN109064976A (en) | 2018-11-01 | 2018-11-01 | Driving method, driving circuit and the display device of display panel |
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| CN109064976A true CN109064976A (en) | 2018-12-21 |
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ID=64788871
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| CN201811294496.2A Pending CN109064976A (en) | 2018-11-01 | 2018-11-01 | Driving method, driving circuit and the display device of display panel |
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| CN102200644A (en) * | 2010-03-22 | 2011-09-28 | 乐金显示有限公司 | Stereoscopic image display device |
| US20170162117A1 (en) * | 2013-04-12 | 2017-06-08 | Samsung Display Co., Ltd. | Organic light emitting diode display and driving method thereof |
| CN107767808A (en) * | 2017-11-13 | 2018-03-06 | 北京京东方光电科技有限公司 | A kind of driving method of display panel, display driver circuit and display device |
| CN108257559A (en) * | 2016-12-29 | 2018-07-06 | 乐金显示有限公司 | Display panel with gate drivers |
-
2018
- 2018-11-01 CN CN201811294496.2A patent/CN109064976A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200644A (en) * | 2010-03-22 | 2011-09-28 | 乐金显示有限公司 | Stereoscopic image display device |
| US20170162117A1 (en) * | 2013-04-12 | 2017-06-08 | Samsung Display Co., Ltd. | Organic light emitting diode display and driving method thereof |
| CN108257559A (en) * | 2016-12-29 | 2018-07-06 | 乐金显示有限公司 | Display panel with gate drivers |
| CN107767808A (en) * | 2017-11-13 | 2018-03-06 | 北京京东方光电科技有限公司 | A kind of driving method of display panel, display driver circuit and display device |
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Application publication date: 20181221 |