CN106663402A - Concurrently refreshing multiple areas of a display device using multiple different refresh rates - Google Patents
Concurrently refreshing multiple areas of a display device using multiple different refresh rates Download PDFInfo
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- CN106663402A CN106663402A CN201580041805.3A CN201580041805A CN106663402A CN 106663402 A CN106663402 A CN 106663402A CN 201580041805 A CN201580041805 A CN 201580041805A CN 106663402 A CN106663402 A CN 106663402A
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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
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
-
- 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]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/04—Partial updating of the display screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/10—Special adaptations of display systems for operation with variable images
- G09G2320/103—Detection of image changes, e.g. determination of an index representative of the image change
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G2340/0435—Change or adaptation of the frame rate of the video stream
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses concurrently refreshing multiple areas of a display device using multiple different refresh rates. This application relates to methods and apparatus for refreshing a display device at various frequencies. Specifically, multiple areas of the display device can be refreshed concurrently at different frequencies. In this way, when static content is being displayed in certain areas of the display device, those certain areas can be refreshed at a lower rate than areas displaying dynamic content such as video or animation. By refreshing at lower rates, the energy consumed by the display device and subsystems associated with the display device can be reduced. Additionally, processes for reducing flicker when refreshing the display device at different refresh rates are disclosed herein.
Description
Technical field
Described embodiment relates generally to the refresh rate of modification display device.More specifically, the present embodiment is related to
And the method and apparatus in the multiple regions for refreshing display device simultaneously with different rates.
Background technology
The latest developments of computing device have allowed for being shown visually in many light-duty and generally portable computing device
Mirable figure.Figure can be provided by the multiple systems including graphic process unit and display monitor.Many figures
Processor can be interacted to provide image and video with monitor is shown, the image and video can not perceived monitor user is shown
To being updated on the premise of any interruption or refresh.However, extending in the period, from the data transfer and light that show monitor
Transmitting usual disabled big energy when being required for implementing in portable computing device.Generally, this energy is exclusively used in showing
Conversion between the color and luminance level of device, and therefore design the display of best transition is not provided and can make computing device
Consumer's Experience degrades.Therefore, the necessary Jing of manufacturer often in the more unforgettable visual display of offer or saves selection between energy,
To provide longer battery life for computing device.
Many computing devices are mainly used in the internet browsing that can be frequently necessary to show various figures.For example, some webpages
It is exclusively used in stream-type video, and therefore a large amount of effort of graphic process unit from computing device can be needed.It is smooth in order to provide
Video flowing, show that monitor should be to allow smoothly to present on a display monitor the speed of video refreshing.However, because
The size of the video for being refreshed and not considering showing for the whole region for generally showing monitor, so remaining high refreshes speed
Rate is probably poorly efficient relative to energy ezpenditure.Therefore, even if the user of computing device passes in large-scale display monitor up flow type
Defeated small video, refresh rate also will be dynamic relative to video size.Because the hardware of many computing devices is not configured as
Refresh rate is adjusted according to the application program being carrying out, so being usually left in user during the frequent media-playback period not
The equipment for charging can be maintained.Therefore, user is not generally encouraged to show Media Stream, until user can charge its computing device insertion
In port, or until user knows that they will need not be used for the battery longevity of other application programs by the specified point in a day
Life.Although additionally, there are many processes of application program in Cloud Server rather than in computing device, showing various application programs
Animation the mode consumed energy that can also waste of free screen.In this way, in some cases, application program can
More multi-energy is consumed only for main purpose that is attractive in appearance rather than applying.
The content of the invention
This document describes being related to the various embodiments for controlling the method and apparatus of the refresh rate of display device.
In some embodiments, the display device of such as liquid crystal display (LCD) or light emitting diode (LED) display is listed.It is aobvious
Show that equipment may include:Pel array, the gate drivers of pel array are operatively coupled to, and are operatively coupled to picture
The data driver of pixel array.Display device may also include the control circuit for being operatively coupled to gate drivers.Control electricity
Road can be configured to:When the row of the first frame data collection is different from the row of the second frame data collection, provide normal to gate drivers
Refresh signal;And when the row of the first frame data collection is identical with the row of the second frame data collection, to gate drivers Jing is provided
The refresh signal of modification.
In other embodiments, multiple regions for refreshing display device simultaneously with different refresh rates are listed
Method.The method may include to generate the first Frame and the second Frame, and multiple rows of the first Frame and second are counted
It is compared according to multiple rows of frame.The method may also include determining that the modification row of the second Frame, wherein modification row is the second number
According to data row different from the corresponding data row in the first Frame in frame.Additionally, the method may include:So that display device
Part I corresponding with the modification row of the second Frame is refreshed with the first refresh rate, and causes the neighbouring aobvious of display device
The Part II for showing equipment Part I is refreshed with the second refresh rate.
In other other embodiments, machine readable non-transient storage media is listed.The storage medium can be stored
Instruction, the instruction is in the computing device in being included in computing device so that computing device comprises the following steps:
Receive with by corresponding first Frame of the view data for showing on the display device and the second Frame.The step may also include
Second group of row and the 3rd group of row in first group of row of the first Frame and the second Frame is compared.Additionally, the step
May include that the first row subset for determining first group of row is differed with the first row subset of second group of row, and determine first group of row
The second row subset it is identical with the second row subset of the 3rd group of row.Additionally, the step may include:So that corresponding with second group of row
First set drive circuit conversion causes the second set drive circuit conversion corresponding with the 3rd group of row into low into high state
State.
What is carried out according to the accompanying drawing for combining the principle for illustrating the embodiment by way of example is described in detail below,
Other aspects of the present invention and advantage will become clear from.
Description of the drawings
The disclosure will become apparent to by specific descriptions below in conjunction with the accompanying drawings, wherein similar reference represents class
As structural detail.
Fig. 1 shows the computing device with the display for including multiple regions, wherein shown figure is static
Or it is dynamic.
Fig. 2 shows the system diagram for controlling display device according to some embodiments discussed in this article.
Fig. 3 shows the display with light emitting diode (LED) array for being connected to gate drivers and data driver
The figure of equipment.
Fig. 4 A to Fig. 4 B show the gate driver circuit with element circuit and outlet selector circuit.
Fig. 5 shows and lists and how can refresh LED array with different rates based on the operation of gate driver circuit
Multiple rows and region figure.
Fig. 6 A to Fig. 6 B to show and provide the problem andsolution that multiple refresh rates are associated with to LED array.
Fig. 7 is shown for performing many storehouses and the distribution of multi-parameter gamma so that the flicker and ripple that mitigate refreshing boundary are asked
The figure of topic.
Fig. 8 shows the refreshing for changing a line or one group of row based on the difference between the frame provided to LED array
The method of speed.
Fig. 9 show for based on by the flicker content of one or more frames shown by LED array or image adjusting
The method of a line of LED array or the refresh rate of multirow.
Figure 10 is shown for having been kept static or unchanged time quantum to refresh LED array according to a line or multirow
A line or multirow method.
Figure 11 is the block diagram of the computing device of the part that can represent various embodiments discussed in this article.
Specific embodiment
This part describes the representative applications of the method and apparatus according to present patent application.There is provided these examples be only for
Addition context simultaneously contributes to understanding the embodiment.Therefore, will be evident that for a person skilled in the art
, the embodiment can be put into practice in the case of some or all in without these details.In other cases,
In order to avoid unnecessarily obscuring the embodiment, well known process step is not described in detail.Other application be also it is possible,
So that the example below be not construed as it is restricted.
In the following detailed description, the accompanying drawing for the part that with reference to form specification, and in the accompanying drawings illustrating
Bright mode shows the specific embodiment according to the embodiment.Although describe in detail these embodiments enough
So that those skilled in the art can put into practice the embodiment, it is to be understood that, these examples are not restricted, are made
Obtaining can modify using other embodiments and in the case of the spirit and scope without departing from the embodiment.
Embodiment discussed in this article is related to display device, and the display device is configured to be based on will be shown by display device
The content shown is refreshed with different rates.Many computing devices have and generally show in various use times still image and move
The display of state image.Still image and dynamic image generally can be simultaneously shown on the display of computing device.According to here
The embodiment of discussion, can distribute relatively low refresh rate to the part for showing still image of display, and can be to aobvious
Show the part distribution normal refresh rate for showing dynamic image of device.The difference of these refresh rates can partly by exporting
Selector circuit realizes that the outlet selector circuit can prevent from updating a line or multirow of display.Specifically, display can be wrapped
The LED array with multiple rows is included, and each row may be connected to gate drivers, and the gate drivers can be selected based on output
The action of device circuit and be prevented from allow corresponding line refreshing.In some cases, data driver provides renewal to LED array
Frame data, and if update frame data for two or more times refresh be identical, then gate drivers can be prevented
Only refresh a line or multirow of LED array.For example, when LED array positive output still image at a part for LED array,
Control signal can be provided to outlet selector, the outlet selector prevents from refreshing equal to the speed of LED array other parts
The part of LED array.May differ from the other parts of LED array to refresh single file or multigroup row so that at least two refresh
Speed is used to provide the output from LED array.In some embodiments, the refreshing to the part distribution of LED array is fast
Rate can be based on the flicker content of one or more images that will be exported by LED array.For example, when image is comprising high flicker content
When, the corresponding part of LED array can be allocated low refresh rate.Additionally, when image is comprising low flicker content, LED array
Corresponding part can be allocated extremely low refresh rate.Additionally, during refreshing every time, executable polarity is changed to mitigate LED battle arrays
The abrasion of the LED of row.
When multiple refresh rates are used simultaneously on the display device, ripple can be attached thereon by display device
The user of computing device is visible.Side between two adjacent parts that ripple can be operated with different refresh rates by display
Boundary causes.In order to mitigate and preventing the generation of ripple, there is discussed herein compensation method.In one embodiment, using numeral
Compensation method.Digital compensation method allows to show that the data that boundary is presented perform the shake of at least 2 bit spaces to what is discussed.
In another embodiment, using interpolation process, refresh rate of the interpolation process based on discussed a line or multirow is to extremely
Few two gamma curves carry out interpolation.By interpolation results output to a line or multirow for being discussed, with adjustment will in a line or
The gamma of the image shown at multirow, is ND for causing any ripple effect.
These and other embodiments are discussed below with reference to Fig. 1 to Figure 11;However, those skilled in the art will easily
Understand, herein in relation to the detailed description given by these accompanying drawings merely for illustrative purpose, and should not be taken to limit
Property.
Fig. 1 shows the computing device 100 with the display 102 for including multiple regions, wherein shown figure is
It is static or dynamic.Specifically, the display 102 of computing device 100 includes header line 104 and dynamic icon row 106, the mark
Head row and dynamic icon row are constantly updated according to the circulation or cycle that program in computing device 100.Display 102 also includes quiet
State region 108, the static region is not constantly updated and is to maintain static state, until from user, network connection or computing device 100
Other suitable input source receives inputs.Header line 104 may include the instruction of wireless signal strength, clock time and battery life
Symbol, it generally can change in any given time.For this purpose, header line 104 must show not according to the dynamic change for occurring
Value together is simultaneously adjusted.Can also be according to the modification dynamic icon row 106 of more newly arriving occurred at dynamic icon 110.Dynamic Graph
Mark 110 can show the current date and clock time for constantly changing and updating.In this way, as discussed further herein
, should more frequently refresh dynamic icon 110 to reduce energy ezpenditure than static region 108.For example, on computing device 100
During the operation of application program, the display manager being stored in computing device 100 can determine that and currently present on the display 102
A line or multirow whether include dynamic data.After which and as discussed further herein, display manager can be to include moving
The row distribution ratio of state data is not including the refresh rate that the row of dynamic data is higher.
Fig. 2 shows the system diagram for controlling display device 210 according to some embodiments discussed in this article
200.Specifically, Fig. 2 shows how computing device disclosed herein 202 interacts with display device 210, with simultaneously to
The regional of display device 210 distributes different refresh rates, so as to save the battery life of computing device 202.Calculating sets
Standby 202 may include that storage display tube manages the memory 204 of device 206, for passing between processor 208 and display device 210
Defeated display data.Display device 210 may include data driver 216, for providing to light emitting diode (LED) array 214
Display data.LED array 214 may include the LED of any suitable type for showing at display device 210.For example, LED
Array 214 can be organic LED array.Gate drivers 212 can be responsible for according to from the offer of display manager 206
Refresh rate to the independent LED of display device 210 to provide electric power and scans the row and/or row of LED array 214.Display device
Multiple gate drivers 212, multiple data drivers of any mode that may include to be disposed and adapted to operate display device 210
216 and multiple LED arrays 214.Data driver 216 and gate drivers 212 can be configured to control on display device 210
The brightness of each LED pixel.Additionally, display device 210 can apply to any display monitor used by computing device,
The computing device such as related device of desktop computer, mobile device, media player or any other computer.One
In a little embodiments, display device 210 is the liquid crystal display (LCD) with LED backlight.LED backlight can drive from grid
Dynamic device 212 and data driver 216 go coupling, and gate drivers 212 and data driver 216 to can be used to control liquid crystal
Transmissivity, for passing through the LED light from LED backlight.In this way, liquid crystal discussed in this article or LED battle arrays
The LED of row can be used as pel array, to provide passage or source for the light projected from display device 210.
Fig. 3 shows the display device with the LED array 214 for being connected to gate drivers 212 and data driver 216
210 Figure 30 0.As discussed further herein, gate drivers 212 may include that often row and/or each column to LED array provide electricity
Power and multiple grid o controllers of scan data output.According to embodiment discussed in this article, each gate output terminal
302 can be by each independent row or the individually refresh rate restriction of group row.In this way, one or more gate output terminals
302 can be differently configured from the speed of one or more other gate output terminals 302 to refresh.Additionally, data driver 216 may include
For more new signal and transfer signals to multiple data outputs 304 of LED array 214.In some embodiments, LED is worked as
When array 214 just shows still image on screen, one or more data outputs 304 can be stopped or be transformed into low output shape
State is reducing power consumption.Additionally, when data output 304 stops or during in low state, can be quiet in the display for affecting LED array 214
The refresh rate corresponding to gate output terminal 302 is reduced in the region of the part of state image.
Fig. 4 A to Fig. 4 B show the gate driver circuit 400 with element circuit 410 and outlet selector 412.Grid
Driver circuit 400 includes control circuit 408, and the control circuit is connected to multiple transistors and input, for allowing control
Circuit processed 408 scans the renewal from data driver 216.One or more transistors in multiple transistors can be oxidation
Thing transistor (for example, oxide thin film transistor), it provides extremely low off state current, so as to apply low brush to LED array 214
Less power consumption is allowed during new speed, as discussed further herein.Additionally, by using oxide transistor and organic LED
LED array 214 is combined, and compared to the display using low temperature polycrystalline silicon, is capable of achieving significantly reducing for power consumption.Therefore, beg for herein
By apparatus and method can be realized using gate driver circuit 400, the gate driver circuit have be connected to organic LED
LED array 214 one or more oxide thin film transistors.Additionally, in some embodiments, gate driver circuit
400 can be coupled in each gate output terminal 302, so as to be based on to gate driver circuit 400 provide one or more when
Clock signal scans a line or multirow simultaneously.Outlet selector 412 is attached in gate driver circuit 400, with defeated based on control
Entering end 402 prevents scanning.For example, as shown in Figure 4 A, scanning signal 414 can be provided to outlet selector 412, and by lacking control
Input processed 402 come prevent from selector output 404 export the scanning signal.It is defeated when control is not provided to outlet selector 412
When entering end 402, no signal or low voltage signal can be exported from selector output 404.Fig. 4 B are shown in outlet selector 412
Example during control signal 416 is received at control signal 402.Due to control signal 416, in control signal 402 and choosing
Select and form conductive path at the transistor between device output 404, so as to allow to export scanning signal 414 from selector output 404.
In the case where the background of logic circuit of scanning signal is provided it, scanning signal 414 can be high voltage, to indicate that what is operated " connects
It is logical " or " high " state.Therefore, although scanning signal 414 can constantly be applied in whole gate driver circuit 400, directly
When control signal 416 is received at control signal 402, just scanning signal 414 will be exported from selector output 404.It is logical
Cross this mode because gate driver circuit 400 can be combined at each gate output terminal 302, simply by
One or more gate driver circuits 400 apply control signal 416, and a line or multirow output that can prevent gate output terminal is swept
Retouch signal 414, or a line or multirow output " shut-off " or " low " signal for causing gate output terminal.
Fig. 5 is shown and lists and how can be refreshed LED battle arrays with different rates based on the operation of gate driver circuit 400
Multiple rows of row 214 and the Figure 50 0 in region.Specifically, Fig. 5 is listed to the first area 508 of LED array 214 distribution the
Example during one refresh rate, first refresh rate is more than the second refreshing that the second area 510 to LED array 214 distributes
Speed.At the 1st frame, due to both the first refresh rate and the second refresh rate, held based on all rows to LED array 214
Capable scanning come refresh first area 508 and second area 510 both.In order to explain, first area 508 can be streaming
Video, and second area 510 can be the still image of adjacent stream-type video.From the second frame to " N+3 " frame, first refreshes speed
Rate causes to refresh the row corresponding to first area 508 at each frame, to allow to update stream-type video at each frame.However,
Second refresh rate causes not being refreshed with the corresponding row of second area 510, and because the second refresh rate refreshes less than first
Speed and keep static.At " N+4 " frame, after second area 510 has kept not refreshing persistently multiple successive frames, first
Region 508 and second area 510 refresh again simultaneously.In this way, different from refreshing whole LED battle arrays with phase same rate
Row 214, by refreshing the part of LED array 214 with different refresh rates energy is saved.In some embodiments, may be used
Any appropriate number of refresh rate is applied to LED array 214.For example, can be different at least three kinds of the application of LED array 214
Refresh rate.Furthermore, it may be determined that the minimum refresh rate of a line of LED array 214 or multirow.Minimum refresh rate can be anti-
The minimum refresh rate of the flicker of the image for only being shown by LED array 214.Additionally, can in the respective regions of LED array 214 or
Polarity change is performed during each refreshing performed at row.
Fig. 6 A to Fig. 6 B to show and provide the problem andsolution that multiple refresh rates are associated with to LED array 214.
Specifically, Fig. 6 A show the expression for refreshing border 608, and refresh rate of the refreshing border in first area 508 is more than second
Can be for user is visible during the refresh rate in region 510.In fig. 6 it can be seen that refreshing the expression on border 608, wherein showing
Average freshness line 606 is gone out.Average freshness line 606 is following example:It is more than the second refresh rate in the first refresh rate 602
604, and neighbouring refreshing border 608 is while when showing two refresh rates.Due to average freshness line 606, flicker or brightness
Ripple will be visible, unless refresh border 608 compensated.In order to solve the problems, such as flicker and ripple, arrange in Fig. 6 B and Fig. 7
Solution is gone out.Specifically, Fig. 6 B show how to perform in the digital domain for refreshing side using a set of pixels 610
The compensation on boundary 608, this group of pixel can be exchanged based on refresh rate on border 608 is refreshed.For example, for traversal refreshes border
608 each collection with least 2 × 2 pixels, each block of pixels 612 for illustrating in set of pixels 610 can be ranked up and/or
Alternately.Can perform the technology (sometimes referred to as spatial jitter) and regard to provide between two regions with different refresh rates
The conversion smoothed in feel.
Fig. 7 shows and be distributed to mitigate the flicker and line that refresh at border 608 for performing many storehouses and multi-parameter gamma
The system diagram 700 of ripple problem.Specifically, Fig. 7 is shown for flashing and line to correct to row or the switching of row block application gamma
The simulation solution of ripple.System diagram 700 includes second gamma curve of the first storehouse 702 and storage of the first gamma curve of storage
Second storehouse 704.Each of first gamma curve and the second gamma curve and two for can applying to LED array 214 respectively
One of refresh rate is associated.During the compensating operation switched using gamma, by the first gamma curve and the second gamma
Curve is input in interpolation module 708 together with row block refresh rate 706.After which, to the first gamma curve and second
Gamma curve carries out interpolation.Interpolating method can be any appropriate format that interpolation is carried out to view data.Can be according to interpolation
The row block refresh rate 706 that module 708 is provided, scaling or otherwise changes the first gamma curve and the second gamma curve
Interpolation results.Therefore, row block gamma 710 is exported as curve from interpolation module 708, to provide hiding refreshes border 608
Simulation solution.According to the seriousness of the flicker and ripple occurred at border 608 is being refreshed, can be simultaneously to LED array 214
A line or multirow apply row block gamma 710.
Fig. 8 shows the brush for changing a line or one group of row based on the difference between the frame provided to LED array 214
The method 800 of new speed.Specifically, method 800 includes step 802:First Frame and second are generated by display manager 206
Frame.Can be at computing device 202 or display device 210 by one or more softwares in one or two relevant device
Module is generating the first Frame and the second Frame.At step 804, display manager 206 is by each the first frame line (i.e.
The row of one Frame) it is compared with each second frame line (i.e. the row of the second Frame).Can be for often row sequentially or one
Next complete the comparison of step 804, or the comparison that can simultaneously perform all rows.At step 806, display manager
206 determine whether the first frame line is different from the second frame line.If the first frame line is different from the second frame line, at step 808, show
Show manager 206 so that the array row being associated with the second frame line refreshes according to normal refresh rate.If the first frame line with
Second frame line is identical, then at step 810, display manager 206 causes the array row being associated with the second frame line according to low brush
New speed is refreshing.In this way, can cause to be kept on multiple successive frames static frame line to keep low refresh rate, with
Save energy.For example, normal refresh rate can be 30 hertz or 60 hertz, and low refresh rate can be 10 hertz or 2 hertz,
And extremely low refresh rate can be 1Hz.Normal refresh rate, low refresh rate and extremely low refresh rate can apply to
Determine one or more arbitrary values of display device.As discussed further herein, normal refresh rate can be more than low refresh rate,
And low refresh rate can be more than extremely low refresh rate.
Fig. 9 show for based on by the flicker content of one or more frames shown by LED array 214 or image adjusting
The method 900 of a line of whole LED array 214 or the refresh rate of multirow.Perhaps flicker refers to that user calculates in viewing in flicker
The amount or seriousness of the appreciable obvious conversion from frame to frame during the display of equipment.Method 900 includes step 902, its
Middle display manager 206 generates the first Frame and the second Frame.Each data in first Frame and the second Frame
Frame includes one or more the data rows that will be provided to LED array 214.At step 904, display manager 206 is by the first frame
Each first frame line and each second frame line of the second frame be compared.After which, at step 906, display manager
206 determine for one or more in the first frame line of the first frame and one or more in the second frame line of the second frame
Whether the first frame line is different from the second frame.If any first frame line is different from corresponding second frame line, at step 908,
Display manager 206 can refresh one or more corresponding second frame line according to normal refresh rate.If any first
Frame line is identical with corresponding second frame line, then display manager 206 may be advanced to step 910.At step 910, display tube
Reason device 206 can determine whether any second frame line includes high flicker content.If any second frame line includes high flicker content
(for example, by the content for causing user to note the flicker from LED array 214), then at step 912, display manager 206 can
To refresh the second frame line according to low refresh rate.Can to one or more between frame change distribution provided herein is refreshing
Speed so that next conversion can be postponed according to corresponding refresh rate.If any second frame line is not comprising high flicker
Content, then at step 914, display manager 205 can refresh corresponding second frame line according to extremely low refresh rate.With this
Mode, being allocated a line or multirow of extremely low refresh rate can more muchly keep static state to save energy.It is discussed herein
Any method can iteratively analyze single row every time or while analyze multiple rows, effectively to determine suitable for LED battle arrays
A line of row 214 or the refresh rate of multirow.
Figure 10 is shown for having been kept static or unchanged time quantum to refresh LED array according to a line or multirow
214 a line or the method 1000 of multirow.Method 1000 includes step 1002, and wherein display manager 206 determines LED array
214 a line or multirow last long already at static state.At step 1004, display manager 206 is by the quiet hour
Or a line or multirow have been kept for the static or unchanged time be compared with predetermined threshold time.Threshold time can
To be the value arranged by user or manufacturer, the value keeps constant in the their entire life of LED array 214, or based on
The hardware of the associated computing device of LED array 214 changes and changes.At step 1006, display manager 206 determines static state
Whether the time is more than threshold time.If the quiet hour is more than threshold time, at step 1010, display manager 206 can
To prevent from refreshing a line or multirow.In this way, the refresh rate of a line of LED array 214 or multirow will be based on a line or many
Row is already at static time quantum.If the quiet hour is less than or equal to threshold time, at step 1008, display management
Device 206 can allow to refresh a line or multirow.After step 1008 and step 1010, at step 1012, display manager
206 next lines or multirow that can analyze present frame or subsequent frame.For example, can be to each data for providing to LED array 214
Frame and the every a line for each frame perform method 1000.When all frames are analyzed according to method 1000, display management
Device 206 may be advanced to the next frame that will be provided to LED array 214.It should be noted that may adapt to mitigate the energy of display device
Any order or arrange to combine and perform any method discussed in this article or embodiment that amount is consumed.
Figure 11 is the block diagram of the computing device 1100 of the part that can represent computing device 100 and/or computing device 202.Should
Work as understanding, it is shown in Figure 11 and may not be required relative to the part described in Figure 11, equipment or element, therefore at some
Some of which can be omitted in embodiment.Computing device 1100 may include processor 1102, and the processor is represented for controlling
The microprocessor of the overall operation of computing device 1100, coprocessor, circuit and/or controller.While shown as single process
Device, it is to be understood that, processor 1102 may include multiple processors.Multiple processors can operatively communicate each other, and can
Jointly it is configured to perform the one or more functions of computing device as described herein 1100.In some embodiments,
Processor 1102 can be configured to execution and can be stored at computing device 1100 and/or can otherwise be available for processor
1102 instructions for accessing.So, either configured by hardware, or configured by the combination of hardware and software, processor
1102 can perform operation and action according to the embodiment described herein.
Computing device 1100 may also include user input equipment 1104, and the user input equipment allows computing device 1100
User interacts with computing device 1100.For example, user input equipment 1104 can take various forms, such as button, little key
Disk, dial, touch-screen, audio input interface, vision/image capture input interface, input of sensing data form etc..More
Further, computing device 1100 may include display 1108 (screen display), and the display can be controlled by processor 1102
To display to the user that information.Controller 1110 can be used to being interacted by equipment controlling bus 1112 and distinct device and
Control it.Computing device 1100 may also include the network/bus interface 1114 for being coupled to data link 1116.Data-Link
Road 1116 can allow computing device 1100 to be coupled to master computer or accessory device.Can be carried by wired connection or wireless connection
For data link 1116.For wireless connection, network/bus interface 1114 may include wireless transceiver.
Computing device 1100 may also include storage device 1118, and (for example, the storage device can have single disc or multiple disks
Hard disk drive) and management storage device 1118 in one or more subregions (also referred herein as " logical volume ")
Memory management module.In some embodiments, storage device 1120 may include flash memories, semiconductor (solid-state) storage
Device etc..Further, computing device 1100 may include read-only storage (ROM) 1122 and random access memory (RAM)
1124 etc..ROM 1122 can be with the pending program of non-volatile storage, code, instruction, utility program or process.RAM
1124 can provide volatile data storage, and store and be configured to perform the storage management mould of various techniques described herein
The related instruction of the part of block.Computing device may also include data/address bus 1126.Data/address bus 1126 can promote at least processing
Data and letter between device 1102, controller 1110, network interface 1114, storage device 1118, ROM 1122 and RAM 1124
Number transmission.
Can individually or in any combination come each side using the embodiment, embodiment, be embodied as
Or feature.The various aspects of the embodiment can be realized by the combination of software, hardware or hardware and software.The embodiment party
Case can also be implemented as on computer-readable medium for controlling the computer-readable code of production operation, or be implemented as
The computer-readable code for controlling production line on computer-readable medium.Computer-readable recording medium is can to store number
According to any data storage device, the data can read thereafter by computer system.The example of computer-readable recording medium
Including read-only storage, random access memory, CD-ROM, HDD, DVD, tape and optical data storage.Computer can
Reading storage medium can also be distributed in the computer system of network-coupled so that computer-readable code is in a distributed way depositing
Storage and execution.In some embodiments, computer-readable recording medium can be non-transient.
Foregoing description has used specific name to provide the thorough understanding to the embodiment to explain.So
And, be evident that for a person skilled in the art, put into practice the embodiment and do not need these details.
Therefore, purpose of illustration and description is in order to the foregoing description of particular and is presented.These description be not intended to by
Be considered exhaustive or the embodiment is limited into disclosed precise forms.For one of ordinary skill in the art
For it is evident that, according to above-mentioned teachings, many modifications and modification are possible.
Claims (48)
1. a kind of in the method in the next multiple regions for refreshing display device simultaneously of different refresh rates, methods described to include:
Generate the first Frame and the second Frame;
Multiple rows of first Frame are compared with multiple rows of second Frame;
The modification row of second Frame is determined, wherein the modification row is counting with described first in second Frame
According to the different data row of the corresponding data row in frame;
So that the Part I corresponding with the modification row of second Frame of the display device refreshes speed with first
Rate is refreshing;And
So that the Part II of the Part I of the neighbouring described display device of the display device is with the second refresh rate
To refresh.
2. method according to claim 1, wherein second refresh rate is equal to or less than first refresh rate
Half, and the display device is light emitting diode (LED) display or the liquid crystal display with LED backlight
(LCD)。
3. method according to claim 1, also includes:
Selector signal is provided to the outlet selector for being operatively coupled to the display device, wherein the selector signal
So that the outlet selector exports refresh signal to the display device.
4., according to method in any one of the preceding claims wherein, also include:
Boundary between the Part I of the display device and the Part II of the display device performs compensation
Process, to mitigate the flicker of the boundary.
5. method according to claim 1, wherein it is described to determine that the modification row of second Frame includes determining
Whether the modification row of the second Frame is corresponding to the content class selected from high flicker content and the group of low flicker content composition
Type.
6. method according to claim 5, also includes:
When the modification row of second Frame is corresponding to high flicker content so that the display device with described the
The corresponding Part I of the modification row of two Frames is refreshed with first refresh rate;And
When the modification row of second Frame is corresponding to low flicker content so that the display device with described the
The corresponding Part I of the modification row of two Frames is refreshed with the 3rd refresh rate, and the 3rd refresh rate is low
In both first refresh rate and second refresh rate.
7. the machine readable non-transient storage media of a kind of store instruction, the instruction is when by being included in computing device
Reason device causes the computing device step, the step to include when performing:
Receive with by corresponding first Frame of the view data for showing on the display device and the second Frame;
Both second group of row in first group of row of first Frame and second Frame and the 3rd group of row are carried out
Relatively;
The first row subset for determining first group of row is different from second group of row;
Determine that the second row subset of first group of row is identical with the 3rd group of row;
So that the first set drive circuit conversion corresponding with second group of row is into high state;And
So that the second set drive circuit conversion corresponding with the 3rd group of row is into low state.
8. machine readable non-transient storage media according to claim 7, wherein the high state causes described second group
Row refreshes, and the low state causes the 3rd group of row to keep not refreshing.
9. machine readable non-transient storage media according to claim 7, also includes:
It is higher or lower than high flicker threshold or low flicker threshold to determine whether second group of row and the 3rd group of row include
Flicker content.
10. machine readable non-transient storage media according to claim 7, also includes:
Boundary between second group of row and the 3rd group of row performs dither process.
The 11. machine readable non-transient storage media according to any one of claim 7-10, also include:
The interpolation of two gamma curves is performed, to compensate at least two brush corresponding with second group of row and the 3rd group of row
Difference between new speed.
12. machine readable non-transient storage media according to claim 7, also include:
When the second row subset of first group of row is different from the 3rd group of row so that the second set drive electricity
Road is converted into high state.
A kind of 13. computing devices, including:
Display unit:
Processor;With
The memory of store instruction, the instruction causes the computing device to walk as follows when by the computing device
Suddenly:
Generate the first Frame and the second Frame;
Multiple rows of first Frame are compared with multiple rows of second Frame;
The modification row of second Frame is determined, wherein the modification row is counting with described first in second Frame
According to the different data row of the corresponding data row in frame;
So that the Part I corresponding with the modification row of second Frame of the display device refreshes speed with first
Rate is refreshing;And
So that the Part II of the Part I of the neighbouring described display device of the display device is with the second refresh rate
To refresh.
14. computing devices according to claim 13, wherein second refresh rate is equal to or less than the described first brush
The half of new speed, and the display device is light emitting diode (LED) display or the liquid crystal display with LED backlight
Device (LCD).
15. computing devices according to claim 13, wherein the step is further included:
Selector signal is provided to the outlet selector for being operatively coupled to the display device, wherein the selector signal
So that the outlet selector exports refresh signal to the display device.
16. computing devices according to claim 13, wherein the step is further included:
Boundary between the Part I of the display device and the Part II of the display device performs compensation
Process, to mitigate the flicker of the boundary.
17. computing devices according to claim 16, wherein the compensation process is dither process.
18. computing devices according to any one of claim 13-17, wherein the compensation process includes performing two gals
The interpolation of horse curve, to compensate the Part I and the Part II pair of the display device with the display device
Difference between at least two refresh rates answered.
19. computing devices according to claim 13, wherein determine the modification row of second Frame including really
Whether the modification row of fixed second Frame is corresponding to the group selected from high flicker content and low flicker content composition
Content type.
20. computing devices according to claim 19, wherein the step is further included:
When the modification row of second Frame is corresponding to high flicker content so that the display device with described the
The corresponding Part I of the modification row of two Frames is refreshed with first refresh rate;And
When the modification row of second Frame is corresponding to low flicker content so that the display device with described the
The corresponding Part I of the modification row of two Frames is refreshed with the 3rd refresh rate, and the 3rd refresh rate is low
In both first refresh rate and second refresh rate.
A kind of 21. display devices, including:
Pel array;
Gate drivers, the gate drivers are operatively coupled to the pel array;
Data driver, the data driver is operatively coupled to the pel array, to provide to the pel array
Frame data;With
Control circuit, the control circuit is operatively coupled to the gate drivers, wherein the control circuit is configured
For:
When the row of the first frame data collection is different from the row of the second frame data collection, to the gate drivers normal refresh letter is provided
Number;And
When the row of the first frame data collection is identical with the row of the second frame data collection, to the raster data model
Device provides modified refresh signal.
22. display devices according to claim 21, wherein when the control circuit receives control signal, to described
Gate drivers provide the normal refresh signal, and the control signal causes circuit block to be formed for the normal refresh
The conductive path that signal is passed through.
23. display devices according to claim 21, wherein the normal refresh signal causes the pel array with just
Often refreshing, the modified refresh signal causes pel array with modified refresh rate to refresh refresh rate, and
And the normal refresh rate is more than the modified refresh rate.
24. display devices according to claim 21, also include:
Multiple control circuits, the plurality of control circuit is configured to the pel array while providing the modified brush
New signal and the normal refresh signal;And
Wherein described pel array includes:
Multiple liquid crystal, the plurality of liquid crystal is configured to control the transmission of the light from light emitting diode (LED) backlight, or
Multiple organic LEDs.
25. display devices according to any one of claim 21-24, also include:
First group of gate drivers;With
Second group of gate drivers, wherein the control circuit is configured such that first group of gate drivers normally to brush
New speed causes second group of gate drivers with modified refreshing refreshing the Part I of the pel array
Speed is refreshing the Part II of the pel array.
26. display devices according to claim 21, also include:
Multiple gate drivers, wherein the control circuit is configured at least two grid in the plurality of gate drivers
When driver causes at least two parts of the pel array with different refresh rates to refresh, enter every trade compensating operation.
27. display devices according to claim 26, wherein the row compensating operation includes the row across the pel array
To perform dither operation.
28. display devices according to claim 26, wherein the row compensating operation is included in and the different refreshing speed
Interpolation is performed between at least two gamma curves that at least one refresh rate in rate is associated.
A kind of 29. computing devices, including:
Processor;
Memory;
And display system, the display system includes:
Data driver;With
Gate drivers, the gate drivers include being conductively coupled to multiple gate output terminals of multiple selector circuits, described
Multiple selector circuits are each configured to according to the control letter generated by the control circuit for being conductively coupled to each selector circuit
Number periodically exporting scanning signal, wherein the control circuit is configured to based on the frame generated by the data driver
Data are operated causing the plurality of selector circuit simultaneously according to different refresh rates.
30. computing devices according to claim 29, wherein the plurality of selector circuit each includes scan input end
And control signal, wherein the scanning signal provided by each selector circuit in the plurality of selector circuit is based on
The scan input end and the control signal.
31. computing devices according to claim 29 or 30, wherein the control circuit is further configured to based on institute
State frame data to cause the Part I of the plurality of selector circuit with first rate switching, and cause the plurality of selection
The Part II of device circuit is with higher than the switching of the second speed of the first rate.
32. computing devices according to claim 31, wherein half of the first rate less than second speed.
33. computing devices according to claim 29, wherein each selector circuit in the plurality of selector circuit
Including the first transistor for being configured as buffer and it is conductively coupled to capacitor, selector circuit output end and control signal
The transistor seconds of input.
A kind of 34. computing devices, including:
Display device, the display device includes:
Pel array;
Gate drivers, the gate drivers are operatively coupled to the pel array;
Data driver, the data driver is operatively coupled to the pel array, to provide to the pel array
Frame data;With
Control circuit, the control circuit is operatively coupled to the gate drivers, wherein the control circuit is configured
For:
When the row of the first frame data collection is identical with the corresponding the first row that the second frame data are concentrated and different from second frame number
During according to the second row concentrated, multiple different scanning signals are provided simultaneously to the gate drivers.
35. computing devices according to claim 34, wherein when the control circuit receives control signal, to described
Gate drivers provide scanning signal, and the control signal causes transistor to form the conduction passed through for the scanning signal
Path.
36. computing devices according to claim 34, wherein the plurality of different scanning signal is believed including normal scan
Number and modified scanning signal, wherein the normal scan signal correspond to the scanning higher than the modified scanning signal
Speed.
37. computing devices according to claim 36, also include:
Multiple control circuits, the plurality of control circuit is configured to the pel array while providing described modified sweep
Retouch signal and the normal scan signal;And
Wherein described pel array includes:
Multiple liquid crystal, the plurality of liquid crystal is configured to control the transmission of the light from light emitting diode (LED) backlight, or
Multiple organic LEDs.
38. computing devices according to any one of claim 34-37, also include:
First group of gate drivers;With
Second group of gate drivers, wherein the control circuit is configured such that first group of gate drivers normally to brush
New speed causes second group of gate drivers with modified refreshing refreshing the Part I of the pel array
Speed is refreshing the Part II of the pel array.
39. computing devices according to claim 34, also include:
Multiple gate drivers, wherein the control circuit is configured at least two grid in the plurality of gate drivers
When driver causes at least two parts of the pel array with different refresh rates to refresh, enter every trade compensating operation.
40. computing devices according to claim 39, wherein the row compensating operation is included in and the different refreshing speed
Interpolation is performed between at least two gamma curves that at least one refresh rate in rate is associated.
A kind of 41. methods for operating display device, methods described includes:
Receive the first Frame corresponding with the view data that will be shown on the display device and the second Frame;
Both second group of row in first group of row of first Frame and second Frame and the 3rd group of row are carried out
Relatively;
The first row subset for determining first group of row is different from second group of row;
Determine that the second row subset of first group of row is identical with the 3rd group of row;
So that the first set drive circuit conversion corresponding with second group of row is into high state;And
So that the second set drive circuit conversion corresponding with the 3rd group of row is into low state.
42. methods according to claim 41, wherein the high state causes second group of row to refresh, and it is described low
State causes the 3rd group of row to keep not refreshing.
43. methods according to claim 41, also include:
It is higher or lower than high flicker threshold or low flicker threshold to determine whether second group of row and the 3rd group of row include
Flicker content.
44. methods according to claim 41, also include:
Boundary between second group of row and the 3rd group of row performs dither process.
45. methods according to any one of claim 41-44, also include:
The interpolation of two gamma curves is performed, to compensate at least two brush corresponding with second group of row and the 3rd group of row
Difference between new speed.
46. methods according to claim 41, also include:
When the second row subset of first group of row is different from the 3rd group of row so that the second set drive electricity
Road is converted into high state.
A kind of 47. display devices, including:
Pel array;
First group of gate drivers;
Second group of gate drivers;
Data driver, the data driver is operatively coupled to the pel array, to provide to the pel array
Frame data;With
Control circuit, the control circuit is configured such that first group of gate drivers are refreshed with normal refresh rate
The Part I of the pel array, and cause second group of gate drivers with modified refresh rate to refresh
State the Part II of pel array.
48. display devices according to claim 48, also include:
Multiple control circuits, the plurality of control circuit is configured to the pel array while providing modified scanning letter
Number and normal scan signal;And
Wherein described pel array includes:
Multiple liquid crystal, the plurality of liquid crystal is configured to control the transmission of the light from light emitting diode (LED) backlight, or
Multiple organic LEDs.
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PCT/US2015/040632 WO2016022265A1 (en) | 2014-08-05 | 2015-07-15 | Concurrently refreshing multiple areas of a display device using multiple different refresh rates |
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Also Published As
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KR20170024106A (en) | 2017-03-06 |
CN106663402B (en) | 2020-05-19 |
EP3178083A4 (en) | 2018-02-21 |
EP3178083A1 (en) | 2017-06-14 |
KR101965079B1 (en) | 2019-04-02 |
CN111462710A (en) | 2020-07-28 |
CN111462710B (en) | 2022-02-18 |
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