CN104464593A - Drive method for display device, and display frame renewing method and device - Google Patents
Drive method for display device, and display frame renewing method and device Download PDFInfo
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- CN104464593A CN104464593A CN201410677665.6A CN201410677665A CN104464593A CN 104464593 A CN104464593 A CN 104464593A CN 201410677665 A CN201410677665 A CN 201410677665A CN 104464593 A CN104464593 A CN 104464593A
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Abstract
The invention discloses a drive method for a display device, and a display frame renewing method and device. In the drive method, firstly, renew pixel data corresponding to the next frame are determined, wherein the renew pixel data are pixel data which correspond to the part, needing to be newly added to a display interface of the display device relative to the current frame of frame, of the next frame of frame; secondly, the determined renewing pixel data are sent to the display device, wherein no pixel data except the renewing pixel data in the next frame of frame are sent. In this way, the display frame data transmission amount can be lowered.
Description
Technical field
The present invention relates to display technique field, especially relate to a kind of driving method for display device, display frame update method and device.
Background technology
The ultimate principle of picture display is still frame to be one by one input to continuously on display, and in extremely rapid succession display frame just can define the illusion of motion.For the screen that size is certain, the pixel that a frame picture comprises is more, the more clear exquisiteness of image of display.Along with display screen is increasing, more and more higher to the requirement of the sharpness of picture, the transmission quantity of view data is also increasing, causes the resource consumed in procedure for displaying to get more and more.
Summary of the invention
Object of the present invention reduces the transmission quantity of view data in procedure for displaying.
In order to achieve the above object, the invention provides a kind of driving method for display device, comprising:
Determine the renewal pixel data that next frame picture is corresponding; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Determined renewal pixel data is sent to described display device, does not send in next frame picture the pixel data upgraded outside pixel data.
Preferably, described method also comprises:
The renewal pixel data quantity information of next frame and rotating direction information are sent to described display device; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding, and described rotating direction information is for representing the rotating direction of next frame picture relative to present frame picture.
Preferably, described determined renewal pixel data is sent to described display device, comprises:
After the residual effect signal receiving display device transmission, renewal pixel data corresponding for next frame picture is sent to described display device.
Preferably, described determine the renewal pixel data that next frame picture is corresponding before, described method comprises:
Detect touch signal, according to the trailing speed of touch signal determination display page detected;
The described renewal pixel data determining that next frame picture is corresponding comprises: the renewal pixel data corresponding according to determined dragging speed determination display page determination next frame picture.
A kind of display frame update method, is characterized in that, comprising:
Receive the renewal pixel data that drive unit sends; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Described renewal pixel data is written in storer, the pixel data making it cover present frame picture to need to exit the part correspondence of display interface relative to next frame picture;
Read the pixel data stored in storer and generate next frame picture.
Preferably, also comprise:
Receive renewal pixel data quantity information and the rotating direction information of the transmission of described drive unit; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding, and described rotating direction information is for representing the rotating direction of next frame picture relative to present frame picture;
The pixel data corresponding according to described renewal pixel data quantity information, present frame picture and the rotating direction information first address that first address determination next frame picture is corresponding in memory.
Preferably, when the bottom-up rolling of described display page, the pixel data corresponding according to described renewal pixel data quantity information, present frame picture and the rotating direction information first address that first address determination next frame picture is corresponding in memory comprise:
Using pixel data corresponding for described present frame picture in memory first address move down first address corresponding as next frame picture after corresponding quantity;
The pixel data stored in described reading storer generates next frame picture, comprising:
First read the pixel data not being updated pixel data and covering from the first address that next frame picture is corresponding, read afterwards and upgrade pixel data.
Preferably, when described display page from up to down rolls, the described pixel data corresponding according to described renewal pixel data quantity information, present frame picture and the rotating direction information first address that first address determination next frame picture is corresponding in memory comprise:
Using pixel data corresponding for described present frame picture in memory first address move up after corresponding quantity as the first address that next frame picture is corresponding;
The pixel data stored in described reading storer generates next frame picture, comprising:
First the first address corresponding from next frame picture read renewal pixel data, reads the pixel data not being updated pixel data and covering afterwards.
Preferably, also comprise:
When starting to read pixel data that next frame picture needs to exit the part correspondence of display interface to generate present frame picture, send residual effect signal to described drive unit, send renewal pixel data corresponding to next frame picture to make described drive unit according to the residual effect signal received.
For a drive unit for display device, it is characterized in that, comprising:
Determination module, for determining the renewal pixel data that next frame picture is corresponding; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Sending module, for determined renewal pixel data is sent to described display device, does not send in next frame picture the pixel data upgraded outside pixel data.
Preferably, described sending module is also for being sent to described display device by the renewal pixel data quantity information of next frame and rotating direction information; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding, and described rotating direction information is for representing the rotating direction of next frame picture relative to present frame picture.
Preferably, renewal pixel data corresponding for next frame picture also for after the residual effect signal receiving display device transmission, is sent to described display device by described sending module.
Preferably, also comprise:
Velocity measuring module, before the renewal pixel data corresponding at described determination module determination next frame picture, detects touch signal, according to the trailing speed of touch signal determination display page detected;
Described determination module is specifically for the renewal pixel data corresponding according to determined dragging speed determination display page determination next frame picture.
A kind of display device, is characterized in that, comprising:
Receiver module, for receiving the renewal pixel data that drive unit sends; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Memory module, is written in storer by described renewal pixel data, the pixel data making it cover present frame picture to need to exit the part correspondence of display interface relative to next frame picture;
Read module, generates next frame picture for reading the pixel data stored in storer.
Preferably, described receiver module is also for receiving renewal pixel data quantity information and the rotating direction information of the transmission of described drive unit; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding, and described rotating direction information is for representing the rotating direction of next frame picture relative to present frame picture;
Described read module is also for according to pixel data corresponding to described renewal pixel data quantity information, present frame picture and the rotating direction information first address that first address determination next frame picture is corresponding in memory.
Preferably, when the bottom-up rolling of described display page, described read module be used for using pixel data corresponding for described present frame picture in memory first address move down first address corresponding as next frame picture after corresponding quantity, first read the pixel data not being updated pixel data and covering from the first address that next frame picture is corresponding, read afterwards and upgrade pixel data.
Preferably, when described display page from up to down rolls, described read module be used for using pixel data corresponding for described present frame picture in memory first address move up after corresponding quantity as the first address that next frame picture is corresponding, first the first address corresponding from next frame picture read renewal pixel data, reads the pixel data not being updated pixel data and covering afterwards.
Preferably, also comprise:
Sending module, during for starting to read pixel data that next frame picture needs to exit the part correspondence of display interface at described read module to generate present frame picture, send residual effect signal to described drive unit, send renewal pixel data corresponding to next frame picture to make described drive unit according to the residual effect signal received.
A kind of display device, is characterized in that, comprise the display device described in above-mentioned any one, and the drive unit for display device described in above-mentioned any one.
In the present invention, first determine the renewal pixel data that next frame picture is corresponding; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture; Determined renewal pixel data is sent to described display device, generates next frame picture to make described display device according to described renewal pixel data and pixel data corresponding to present frame picture.In this way, display picture data transmission quantity can be reduced.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of driving method for display device provided by the invention;
Fig. 2 the invention provides a kind of method flow schematic diagram upgrading picture;
Fig. 3 is once the schematic diagram of corresponding data in display interface before and after possible frame updating and storer;
Fig. 4 is the schematic flow sheet of display device provided by the invention driving and the method upgrading picture;
Fig. 5 is the structural representation of the drive unit for display device provided by the invention;
Fig. 6 is the structural representation of a kind of display device provided by the invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The invention provides a kind of driving method for display device, as shown in Figure 1, the method comprises:
Step S11, determines the renewal pixel data that next frame picture is corresponding; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture.
Step S12, is sent to described display device by determined renewal pixel data, generates next frame picture to make described display device according to described renewal pixel data and pixel data corresponding to present frame picture.Then display device is not sent to for the pixel data upgraded outside pixel data in next frame picture.
Under some display modes, in the scroll display mode such as the rolling of the browsing of such as text or webpage, screen protection, next frame picture is compared with previous frame picture, and only have the picture of part to be added in display interface, a part of picture exits display interface simultaneously.In the present invention, when carrying out frame updating, first determine the pixel data corresponding to part in this part display interface newly joining in display device, afterwards pixel data (renewal pixel data) corresponding for this part picture is sent to display device.Such display device can be corresponding according to the picture upgrading pixel data and present frame pixel data generate next frame picture.Owing to not needing the pixel data transmitted corresponding to the picture of whole frame, the transmission quantity of data can be reduced.
Accordingly, present invention also offers a kind of method upgrading picture, the method can be performed by display device, and as shown in Figure 2, the method comprises:
Step S21, receives the renewal pixel data that drive unit sends.
Step S22, is written in storer by described renewal pixel data, the pixel data making it cover present frame picture to need to exit the part correspondence of display interface relative to next frame picture.
Step S23, reads the pixel data stored in storer and generates next frame picture.
As described above, when carrying out roll display, a part of picture exits display interface, and display device, after the renewal pixel data receiving drive unit transmission, uses the pixel data upgrading pixel data covering and need the part correspondence exiting display.Like this, just complete the renewal to the pixel data stored in storer, read this part pixel data successively according to the direction of rolling, just can generate next frame picture.
In actual applications, if the direction of rolling is from up to down, the part so newly joined in display interface is shown to the top of display interface, now should first read renewal pixel data when reading, and reads the pixel data not being updated pixel data and covering afterwards.Contrary, if the direction of rolling is bottom-up, the part so newly joined in display interface is shown to the bottom of display interface, and next frame picture is when showing, first read the pixel data not being updated pixel data and covering, read afterwards and upgrade pixel data.
It should be noted that, the pixel data of the part correspondence exiting display interface can be needed by present frame picture in several ways in determining step S22 relative to next frame picture, a kind of mode is such as when drive unit sends renewal pixel data, send the positional information upgrading pixel data, thus display device needs the pixel data of the part correspondence exiting display interface relative to next frame picture according to positional information determination present frame picture simultaneously, another kind of mode can be preset various modes, and need the memory location of the pixel data of the part correspondence exiting display interface (can determine in conjunction with rotating direction and speed under setting often kind of pattern, the situation scrolling up and roll downwards as described afterwards), so once present mode is determined, after the renewal pixel data receiving drive unit transmission, directly can determine that present frame picture needs to exit the pixel data of the part correspondence of display interface relative to next frame picture according to the setting of present mode, thus perform step S22, present mode can receive information from drive unit and determine, also can be detected by display device self and determine.Therefore; step S12 also may comprise sending mode information and/or upgrade the positional information of pixel data; but more generally in situation; such as when present mode is determined; step S12 only needs execution that determined renewal pixel data is sent to described display device, and this all belongs to the scope of protection of the invention.
Below in conjunction with concrete application scenarios, the update method of driving method provided by the invention and display frame is described in detail, be illustrated in figure 3 the possible schematic diagram of the display frame before and after once upgrading in display interface, the bottom-up rolling of picture, before frame updating, the capable pixel data of 1-5 is shown in the picture of display interface, after frame updating, need the pixel data that display 2-6 is capable, the pixel count of the 1st row exits display interface, the pixel data of the 6th row newly joins in display interface, and as shown in Figure 4, the method comprises:
Step S41, drive unit detects touch signal, according to the trailing speed of touch signal determination display page detected.
The detailed process of step S41 can be consistent with prior art, is no longer described in detail at this.
In actual applications, also may be the rolling that other factor causes display page, such as when screen protection shows, or when reader sets fixing speed browsing webpage or read text, display page can automatically upwards or downwards roll.Now, drive unit is according to the speed of the speed determination display page rolling of setting.
Step S42, the renewal pixel data that drive unit is corresponding according to determined dragging speed determination display page determination next frame picture.
General, when carrying out roll display, the part newly joining picture is rectangular, and the columns of the renewal pixel data of its correspondence is consistent with the columns of whole picture, and namely in the row direction, the length upgrading pixel data is consistent with the length of display interface.In actual applications, the speed that frame per second and display page roll is multiplied, need newly to join the length of the part in display interface at column direction according to product determination next frame picture afterwards, and then determine the line number of pixel data, from data to be shown, intercept the pixel data of corresponding line number as renewal pixel data.
Step S43, renewal pixel data corresponding for next frame picture, after the residual effect signal receiving display device transmission, is sent to described display device by drive unit.
Be attached to Fig. 3, renewal pixel data is the 6th row pixel data shown in figure.
Step S44, display device receives the renewal pixel data that drive unit sends, and is written in storer by described renewal pixel data, the pixel data making it cover present frame picture to need to exit the part correspondence of display interface relative to next frame picture.
Specific to Fig. 3, when present frame shows, display device, when starting to read the 1st row pixel data, sends residual effect signal to drive unit, and drive unit starts the display data to display device write the 6th row, to cover the 1st row display data.
Step S45, the renewal pixel data quantity information being used for the quantity representing the renewal pixel data that next frame picture is corresponding is sent to display device by drive unit, and described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding.
Step S46, display device receives the renewal pixel data quantity information that drive unit sends, and determines according to this renewal pixel data quantity information the quantity upgrading pixel data.
Step S47, first address corresponding for previous frame picture is moved down the first address of corresponding quantity as pixel data corresponding to next frame picture by display device.
In practical application, the quantity information of renewal pixel data here can be the number of pixel data itself, also can for upgrading the line number of pixel data.If the pixel data stored in storer is just identical with the quantity of one-row pixels data in display interface, now the information of slipping a line can be sent to display unit as the quantity information upgrading pixel data, the first address of present frame directly can be moved down the first address of pixel data corresponding as next frame picture after corresponding line number by display unit according to this information of slipping a line.Composition graphs 3, line number is here 1.
It is to be noted, if the pixel data stored in storer is just different from the quantity of one-row pixels data in display interface, also line number can be sent to display unit, make display unit calculate according to the quantity of this line number and display interface one-row pixels data the quantity needing to move down.
As shown in Figure 3, first address moves down 1 and walks to the 2nd row, and first pixel data of the 2nd row is the first address of pixel data corresponding to next frame picture.It is pointed out that the 6th row pixel data is the footline of the pixel data that next frame picture is corresponding when first pixel data of the 2nd row is the first address of pixel data corresponding to next frame picture, is also the next line of the 5th row pixel data.
Step S48, first display device reads pixel data not capped in the storer of self, read afterwards and upgrade pixel data, generate next frame picture, when starting to read lower next frame picture and needing relative to next frame picture the part exited, send residual effect signal to drive unit, send renewal pixel data corresponding to lower next frame picture to make described drive unit.
Be attached to Fig. 3, first display device reads the capable pixel data of 2-5, reads the 6th row pixel data afterwards.
If next frame picture needs the line number of the pixel data exited corresponding to the part of display interface to be also 1 relative to lower next frame picture, so when starting next frame under reading and needing the 2nd row exiting display interface, display device sends residual effect signal to drive unit, renewal pixel data corresponding for lower a burst of picture is written in storer by notice drive unit, covers the 2nd row pixel data.
According to the mode shown in Fig. 4, the first address of the pixel data that a frame picture is corresponding is downward successively, and corresponding picture upwards shows gradually, until exit display interface, the part newly joined in picture is loaded in turn the below of display interface.In this way, when carrying out picture display, only needing the pixel data of the part correspondence newly joined in display interface to carry out being sent to display device, thus the transmission quantity of pixel data can be reduced.Simultaneously, in the embodiment of the present invention, display device is when needing to need the pixel data of the part correspondence shifting out display interface to start to read at next frame to a frame picture, residual effect signal is sent to drive unit, drive unit is after receiving residual effect signal, to the renewal pixel data that display device write next frame picture is corresponding, because reading speed is greater than writing speed (reading speed is generally the twice of writing speed), the renewal pixel data that next frame picture can not be caused corresponding is read at present frame and generates present frame picture, simultaneously, due to drive unit be display device start to read next frame picture need relative to lower next frame picture the part exiting display interface time, renewal pixel data corresponding to lower next frame is sent to display device, can make renewal pixel data as far as possible early be written in the storer of display device, thus avoid the display affecting lower next frame.
Shown in Fig. 4 is the situation of bottom-up rolling, in actual applications, method provided by the invention also may be used for the scene of from up to down rolling, with the method in above-mentioned Fig. 4 unlike, when from up to down rolling, display device receive slip a line information time, the corresponding quantity that moved up by first address corresponding for present frame is as first address corresponding to next frame, first read and upgrade pixel data, secondly read the part not being updated pixel data and covering.
Present invention also offers a kind of drive unit for display device, can be used for the driving method for display device realized described in above-mentioned any one, as shown in Figure 5, this drive unit comprises:
Determination module 501, for determining the renewal pixel data that next frame picture is corresponding; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Sending module 502, for determined renewal pixel data is sent to described display device, generates next frame picture to make described display device according to described renewal pixel data and pixel data corresponding to present frame picture.
Preferably, sending module 502 is also for being sent to described display device by the renewal pixel data quantity information of next frame; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding.
Preferably, renewal pixel data corresponding for next frame picture also for after the residual effect signal receiving display device transmission, is sent to described display device by sending module 502.
Preferably, also comprise not shown:
Velocity measuring module 503, before the renewal pixel data corresponding at described determination module determination next frame picture, detects touch signal, according to the trailing speed of touch signal determination display page detected;
Determination module 501 is specifically for the renewal pixel data corresponding according to determined dragging speed determination display page determination next frame picture.
Present invention also offers a kind of display device, can be used for realizing the menu renewal method described in above-mentioned any one, as shown in Figure 6, this display device comprises:
Receiver module 601, for receiving the renewal pixel data that drive unit sends; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Memory module 602, is written in storer by described renewal pixel data, the pixel data making it cover present frame picture to need to exit the part correspondence of display interface relative to next frame picture;
Read module 603, generates next frame picture for reading the pixel data stored in storer according to the direction of rolling.
Preferably, receiver module 601 is also for receiving the renewal pixel data quantity information that described drive unit sends; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding:
Described read module 603 is also for according to described renewal pixel data quantity information and the pixel data first address that first address determination next frame picture is corresponding in memory corresponding to present frame picture.
Preferably, when the bottom-up rolling of described display page, read module 603 for using pixel data corresponding for described present frame picture in memory first address move down first address corresponding as next frame picture after corresponding quantity, first read the pixel data not being updated pixel data and covering from the first address that next frame picture is corresponding, read afterwards and upgrade pixel data.
Preferably, when described display page from up to down rolls, read module 603 for using pixel data corresponding for described present frame picture in memory first address move up after corresponding quantity as the first address that next frame picture is corresponding, first the first address corresponding from next frame picture read renewal pixel data, reads the pixel data not being updated pixel data and covering afterwards.
Preferably, also comprise not shown sending module 604, during for starting to read pixel data that next frame picture needs to exit the part correspondence of display interface at described read module to generate present frame picture, send residual effect signal to described drive unit, send renewal pixel data corresponding to next frame picture to make described drive unit according to the residual effect signal received.
Present invention also offers a kind of display device, comprise the display device described in above-mentioned any one, and the drive unit for display device described in above-mentioned any one.
Display device can be various equipment for realizing Presentation Function or equipment combination, and wherein drive unit is for generating the display data for showing, and the display data that display device is used for transmitting according to drive unit complete display.
It will be appreciated by persons skilled in the art that method and apparatus provided by the invention can use software, hardware, firmware or their combination to realize, these all belong to the scope of protection of the invention.Separately, in the present invention, the picture that the next frame needs that drive unit is current needs the frame display data being sent to display device to correspond to display device show, the display data that drive unit previous frame is sent to display device are equivalent to the present frame picture that display device shows.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (19)
1. for a driving method for display device, it is characterized in that, comprising:
Determine the renewal pixel data that next frame picture is corresponding; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Determined renewal pixel data is sent to described display device, does not send in next frame picture the pixel data upgraded outside pixel data.
2. the method for claim 1, is characterized in that, described method also comprises:
The renewal pixel data quantity information of next frame and rotating direction information are sent to described display device; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding, and described rotating direction information is for representing the rotating direction of next frame picture relative to present frame picture.
3. method as claimed in claim 2, is characterized in that, described determined renewal pixel data is sent to described display device, comprising:
After the residual effect signal receiving display device transmission, renewal pixel data corresponding for next frame picture is sent to described display device.
4. the method for claim 1, is characterized in that, described determine the renewal pixel data that next frame picture is corresponding before, described method comprises:
Detect touch signal, according to the trailing speed of touch signal determination display page detected;
The described renewal pixel data determining that next frame picture is corresponding comprises: the renewal pixel data corresponding according to determined dragging speed determination display page determination next frame picture.
5. a display frame update method, is characterized in that, comprising:
Receive the renewal pixel data that drive unit sends; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Described renewal pixel data is written in storer, the pixel data making it cover present frame picture to need to exit the part correspondence of display interface relative to next frame picture;
Read the pixel data stored in storer and generate next frame picture.
6. method as claimed in claim 5, is characterized in that, also comprise:
Receive renewal pixel data quantity information and the rotating direction information of the transmission of described drive unit; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding, and described rotating direction information is for representing the rotating direction of next frame picture relative to present frame picture;
The pixel data corresponding according to described renewal pixel data quantity information, present frame picture and the rotating direction information first address that first address determination next frame picture is corresponding in memory.
7. method as claimed in claim 6, it is characterized in that, when the bottom-up rolling of described display page, the pixel data corresponding according to described renewal pixel data quantity information, present frame picture and the rotating direction information first address that first address determination next frame picture is corresponding in memory comprise:
Using pixel data corresponding for described present frame picture in memory first address move down first address corresponding as next frame picture after corresponding quantity;
The pixel data stored in described reading storer generates next frame picture, comprising:
First read the pixel data not being updated pixel data and covering from the first address that next frame picture is corresponding, read afterwards and upgrade pixel data.
8. method as claimed in claim 6, it is characterized in that, when described display page from up to down rolls, the described pixel data corresponding according to described renewal pixel data quantity information, present frame picture and the rotating direction information first address that first address determination next frame picture is corresponding in memory comprise:
Using pixel data corresponding for described present frame picture in memory first address move up after corresponding quantity as the first address that next frame picture is corresponding;
The pixel data stored in described reading storer generates next frame picture, comprising:
First the first address corresponding from next frame picture read renewal pixel data, reads the pixel data not being updated pixel data and covering afterwards.
9. the method as described in any one of claim 5-8, is characterized in that, also comprises:
When starting to read pixel data that next frame picture needs to exit the part correspondence of display interface to generate present frame picture, send residual effect signal to described drive unit, send renewal pixel data corresponding to next frame picture to make described drive unit according to the residual effect signal received.
10. for a drive unit for display device, it is characterized in that, comprising:
Determination module, for determining the renewal pixel data that next frame picture is corresponding; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Sending module, for determined renewal pixel data is sent to described display device, does not send in next frame picture the pixel data upgraded outside pixel data.
11. devices as claimed in claim 10, is characterized in that, described sending module is also for being sent to described display device by the renewal pixel data quantity information of next frame and rotating direction information; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding, and described rotating direction information is for representing the rotating direction of next frame picture relative to present frame picture.
12. devices as claimed in claim 11, is characterized in that, renewal pixel data corresponding for next frame picture also for after the residual effect signal receiving display device transmission, is sent to described display device by described sending module.
13. devices as claimed in claim 10, is characterized in that, also comprise:
Velocity measuring module, before the renewal pixel data corresponding at described determination module determination next frame picture, detects touch signal, according to the trailing speed of touch signal determination display page detected;
Described determination module is specifically for the renewal pixel data corresponding according to determined dragging speed determination display page determination next frame picture.
14. 1 kinds of display device, is characterized in that, comprising:
Receiver module, for receiving the renewal pixel data that drive unit sends; Described renewal pixel data needs newly to add the pixel data corresponding to the part in the display interface of display device relative to present frame picture for next frame picture;
Memory module, is written in storer by described renewal pixel data, the pixel data making it cover present frame picture to need to exit the part correspondence of display interface relative to next frame picture;
Read module, generates next frame picture for reading the pixel data stored in storer.
15. display device as claimed in claim 14, is characterized in that, described receiver module is also for receiving renewal pixel data quantity information and the rotating direction information of the transmission of described drive unit; Described renewal pixel data quantity information is for representing the quantity of the renewal pixel data that next frame picture is corresponding, and described rotating direction information is for representing the rotating direction of next frame picture relative to present frame picture;
Described read module is also for according to pixel data corresponding to described renewal pixel data quantity information, present frame picture and the rotating direction information first address that first address determination next frame picture is corresponding in memory.
16. display device as claimed in claim 15, it is characterized in that, when the bottom-up rolling of described display page, described read module be used for using pixel data corresponding for described present frame picture in memory first address move down first address corresponding as next frame picture after corresponding quantity, first read the pixel data not being updated pixel data and covering from the first address that next frame picture is corresponding, read afterwards and upgrade pixel data.
17. display device as claimed in claim 15, it is characterized in that, when described display page from up to down rolls, described read module be used for using pixel data corresponding for described present frame picture in memory first address move up after corresponding quantity as the first address that next frame picture is corresponding, first the first address corresponding from next frame picture read renewal pixel data, reads the pixel data not being updated pixel data and covering afterwards.
18. display device as described in claim 14-17, is characterized in that, also comprise:
Sending module, during for starting to read pixel data that next frame picture needs to exit the part correspondence of display interface at described read module to generate present frame picture, send residual effect signal to described drive unit, send renewal pixel data corresponding to next frame picture to make described drive unit according to the residual effect signal received.
19. 1 kinds of display devices, is characterized in that, comprise the display device as described in any one of claim 14-18, and the drive unit for display device as described in any one of claim 10-13.
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| CN201410677665.6A CN104464593B (en) | 2014-11-21 | 2014-11-21 | Driving method, display picture update method and device for display device |
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| CN201410677665.6A CN104464593B (en) | 2014-11-21 | 2014-11-21 | Driving method, display picture update method and device for display device |
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| CN104464593A true CN104464593A (en) | 2015-03-25 |
| CN104464593B CN104464593B (en) | 2017-09-26 |
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