CN102376263B - Driving method and device of electronic paper - Google Patents
Driving method and device of electronic paper Download PDFInfo
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- CN102376263B CN102376263B CN201010266099.1A CN201010266099A CN102376263B CN 102376263 B CN102376263 B CN 102376263B CN 201010266099 A CN201010266099 A CN 201010266099A CN 102376263 B CN102376263 B CN 102376263B
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Abstract
The invention discloses a driving method of electronic paper. The driving method comprises the following steps of: acquiring previous-frame image data and acquiring reset pulse voltage data according to the previous-frame image data; acquiring next-frame image data and acquiring display pulse voltage data according to the next-frame image data; and applying driving voltage on a data wire according to the reset pulse voltage data and the display pulse voltage data so as to realize the display form a previous-frame image to a next-frame image. On the basis of the driving method of the electronic paper, the invention also provides a driving device of the electronic paper. According to the driving method and the driving device disclosed by the invention, the processing efficiency of drive data can be improved and the memory space required by a flash memory is reduced, thereby the aim of reducing the cost is achieved.
Description
Technical field
The present invention relates to Electronic Paper and show field, particularly a kind of driving method of Electronic Paper and drive unit.
Background technology
Electronic Paper display technique is a kind of novel reflective display mode, and compared to traditional display mode, it is high that it has reflectivity, low in energy consumption, and contrast is high, the advantage such as can keep for a long time, is a kind ofly novel can substitute the electronic equipment of paper for reading.
What research was more at present is the electronic paper display device based on electrophoretic techniques, the particularly electronic paper display device based on microcapsules electrophoretic techniques.Electronic paper display device is generally formed laminating by upper and lower substrate, is filled with electrophoresis particle film therebetween, on upper substrate, has public electrode, on lower substrate, has pixel electrode, and pixel electrode is generally rectangular laying, the corresponding pixel of each pixel electrode.Show for active electronic paper, what lower substrate was conventional is thin film transistor (TFT) (TFT, Thin Film Transistor) active base plate, and pixel electrode is connected by via hole with the drain electrode in TFT, source electrode in TFT is connected with data line, and the gate electrode in TFT is connected in grid bus.Based on said structure, with the gating of the each pixel of the total line traffic control of grid, in the time that gate electrode passes into gate voltage, by active layer by drain electrode and source electrode conduction, pixel electrode is applied with voltage by data line, coordinate again the common electric voltage on public electrode, thus by between pixel electrode and the public electrode of upper substrate, apply the electric field time length drive electrophoresis particle move to diverse location realize black and white GTG show.
Electronic Paper drives and is generally divided into reseting stage and demonstration stage, at reseting stage, carries out one-way resetting, only resets toward black or Bai's direction, in the demonstration stage, according to the state after resetting, carries out image demonstration.In traditional driving method, first there are two synchronous DRAM (SDRAM, Synchronous Dynamic Random Access Memory) view data of storing respectively previous frame and next frame, in the time driving, first from the look-up table (LUT, Look Up Table) of flash memory (flash), reading corresponding waveform (waveform) according to the data of same position in SDRAM drives.The form of the waveform of its storage is the sequence of a string-1,1 and 0 composition, and wherein-1,1,0 represents that respectively the driving voltage on corresponding data line is-15V ,+15V and 0V.Be divided into that 64 subframes reset and 64 subframes demonstration (" subframe " here refers to gate electrode and start to scan from the first row a process of last column end of scan) if driven, that corresponding waveform is the sequence of 128.The sequence data position that tradition waveform is corresponding is a lot, more complicated aspect data processing and storage.
For example, before each sub-frame drive, all want first from waveform, to search this subframe corresponding be-1,1 or 0, thereby determine the level of this subframe, very loaded down with trivial details of whole process, and store because all waveforms all need the flash memory of a larger capacity, the spatial content of flash memory also be there are certain requirements.Fig. 1 shows the storage schematic diagram of view data in prior art, as shown in Figure 1, SDRAM1 and SDRAM2 are respectively used to store the view data of previous frame and next frame, and (view data of previous frame and next frame also can be stored in same SDRAM, SDRAM1 and SDRAM2 represent as two storage areas respectively), wherein the view data of each pixel is stored respectively, for example data1, data2...... are until dataN.First, after powering on, need Electronic Paper to show initialization, follow-up like this image shows just good reference value, for example SDRAM1 data after demonstration initialization are set to 0 entirely, the first frame image data is stored in SDRAM2, while showing the first two field picture, SDRAM2 and SDRAM1 are compared, after inquiry look-up table, show output, by the first frame image data, (the first two field picture shows the image that need to show with respect to the second frame after output simultaneously, be previous frame image, now the first frame image data is also referred to as previous frame view data) be stored in SDRAM1; The second frame image data (next frame view data) is stored in to SDRAM2, while showing the second two field picture, SDRAM2 and SDRAM1 is compared, table look-up and show output, SDRAM1 stores present image; The view data that next frame will show is stored in SDRAM2, the like, it is the exportable picture that will show that circulation is carried out.
Fig. 2 is the storage organization schematic diagram of look-up table in prior art.Consult Fig. 2, horizontal direction " 0 " identifies respectively the GTG of previous frame image to " 7 ", and vertical direction " 0 " identifies respectively the GTG of next frame image to " 7 ", thus, formed the look-up table that 8 row 8 of 8 GTGs are listed as, wherein 0 GTG represents white, and 7 GTGs represent black.For example, when the luma data of certain pixel previous frame image is 3, the luma data of next frame image is 2, by inquiry look-up table, can find the data at 3 & 2 places, so just show output according to the data-driven at 3 & 2 places.Suppose to show that image is that 8 GTGs and whole driving are divided into that 64 subframes reset and 64 subframes show totally 128 subframes, the capacity of corresponding look-up table required flash memory is at least 128*2* (8*8)=16384bits (use-1,1,0 represent that respectively the driving voltage on corresponding data line need to be represented by the scale-of-two of two).If driving direction " 01 " represents 0V, " 10 " expression+15V, " 11 " expression-15V, and suppose in 128 subframes of whole driving, certain pixel resets and needs 32 subframes from 3 GTGs, demonstration to 2 GTGs need 22 subframes, all the other are in the maintenance stage, the representation of this driving data is so: 1111......1111 (totally 32 groups " 11 ") 0101......0101 (totally 32 groups " 01 ") 1010......1010 (totally 22 groups " 10 ") 0101......0101 (totally 42 groups " 01 "), and, the storage space that this drive waveforms needs is 32*2+32*2+22*2+42*2=256bits (corresponding to the lattice in look-up table shown in Fig. 2).
Summary of the invention
The problem to be solved in the present invention is too complicated because of drive form in prior art, causes the efficiency of data processing and storage poor.
For addressing the above problem, the invention provides a kind of driving method of Electronic Paper, comprising:
Obtain previous frame view data, according to described previous frame image data acquisition reset voltage pulse data;
Obtain next frame view data, show pulse voltage data according to described next frame image data acquisition;
Impose driving voltage to realize the demonstration from previous frame image to next frame image according to described reset voltage pulse data, demonstration pulse voltage data at data line.
Optionally, described reset voltage pulse data are to the reset number of times of required pulse voltage of previous frame image; Described demonstration pulse voltage data are the number of times that next frame image is shown to required pulse voltage.
Optionally, described previous frame view data, next frame view data comprise the luma data of each pixel in a two field picture.
Optionally, when the image that described reset voltage pulse data are made up of different GTG pixels resets, the one-to-one relationship of different GTGs reset voltage pulse required with it is determined.
What optionally, the described image being made up of different GTG pixels carried out is reset to one-way resetting.
Optionally, the one-to-one relationship of described demonstration pulse voltage data different GTGs demonstration pulse voltage required with it when being shown as the image being made up of different GTG pixels is determined.
For addressing the above problem, the present invention also provides a kind of drive unit of Electronic Paper, comprise: the first storage unit and the second storage unit, described the first storage unit is used for storing previous frame view data, described the second storage unit is used for storing next frame view data, also comprise the 3rd storage unit, control module and driver element
Described the 3rd storage unit is for storing the reset voltage pulse data that reset required to previous frame image and next frame image being shown to required demonstration pulse voltage data;
Described control module is used for obtaining previous frame view data, next frame view data, obtain reset voltage pulse data according to described previous frame view data from described the 3rd storage unit, obtain and show pulse voltage data from described the 3rd storage unit according to described next frame view data, and realize display driver according to driver element described in described reset voltage pulse data, demonstration pulse voltage Data Control;
Described driver element, for accepting the control of described control module, imposes driving voltage to realize the demonstration from previous frame image to next frame image at data line.
Optionally, described reset voltage pulse data are to the reset number of times of required pulse voltage of previous frame image; Described demonstration pulse voltage data are the number of times that next frame image is shown to required pulse voltage.
Optionally, described previous frame view data, next frame view data comprise the luma data of each pixel in a two field picture.
Optionally, when the image that described reset voltage pulse data are made up of different GTG pixels resets, the one-to-one relationship of different GTGs reset voltage pulse required with it is determined.
What optionally, the described image being made up of different GTG pixels carried out is reset to one-way resetting.
Optionally, the one-to-one relationship of described demonstration pulse voltage data different GTGs demonstration pulse voltage required with it when being shown as the image being made up of different GTG pixels is determined.
Optionally, described the 3rd storage unit be drive in chip, set up for storing the reset voltage pulse data that reset required to previous frame image and the register that next frame image is shown to required demonstration pulse voltage data.
Compared with prior art, the present invention has the following advantages:
By thereby the optimization of data processing method having been simplified greatly to the process of data processing with the efficiency of raising data processing, reduce the required storage space of flash memory by the data file layout that changes waveform, thereby realized the object reducing costs.
Brief description of the drawings
Fig. 1 is the storage schematic diagram of view data in prior art;
Fig. 2 is the storage organization schematic diagram of look-up table in prior art;
Fig. 3 is the driving method schematic flow sheet of Electronic Paper provided by the invention;
Fig. 4 is reseting stage GTG and the pulse voltage corresponding relation schematic diagram of the embodiment of the present invention;
Fig. 5 is demonstration stage GTG and the pulse voltage corresponding relation schematic diagram of the embodiment of the present invention;
Fig. 6 is the drive waveforms schematic diagram of the embodiment of the present invention;
Fig. 7 is the driving device structure schematic diagram of Electronic Paper provided by the invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here and implements with multiple, and those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that.Therefore the present invention is not subject to the restriction of following public embodiment.
Traditional driving method is as described in the background art too complicated, cause that data-handling efficiency is low and memory space requirements is larger, so the present invention proposes the driving method of optimization, as shown in Figure 3, Fig. 3 is the driving method schematic flow sheet of Electronic Paper provided by the invention.The driving method of Electronic Paper provided by the invention comprises:
Step S101, obtains previous frame view data, according to described previous frame image data acquisition reset voltage pulse data;
Step S102, obtains next frame view data, shows pulse voltage data according to described next frame image data acquisition;
Step S103, imposes driving voltage to realize the demonstration from previous frame image to next frame image according to described reset voltage pulse data, demonstration pulse voltage data at data line.
In specific embodiment, described previous frame view data, next frame view data comprise the luma data of each pixel in a two field picture, and previous frame view data, next frame view data are stored in respectively SDRAM1 and SDRAM2.Certainly, SDRAM1 and SDRAM2 not can only be confined to store respectively the view data of previous frame and next frame, in other embodiments, can also be undertaken by the mode of alternately storage, for example, after initialization, the first frame image data is stored in to SDRAM2, while showing the first two field picture, SDRAM2 and SDRAM1 are compared, after inquiry look-up table, show output; The second frame image data is stored in to SDRAM1, while showing the second two field picture, SDRAM1 and SDRAM2 is compared, after inquiry look-up table, show output; The 3rd frame image data is stored in to SDRAM2, while showing the 3rd two field picture, SDRAM2 and SDRAM1 is compared, after inquiry look-up table, show output, the like, the also exportable picture that will show is carried out in circulation.In the present embodiment, for storage mode and prior art the indistinction of view data, can consult Fig. 1, taking one of them pixel as example, first from SDRAM1, obtain the luma data i of previous frame image, then obtain according to the luma data i of previous frame image the reset voltage pulse data that reset required to image, when the image that described reset voltage pulse data are made up of different GTG pixels resets, the one-to-one relationship of different GTGs reset voltage pulse required with it is determined, particularly, described reset voltage pulse data are to the reset number of times of required pulse voltage of previous frame image, to this, can represent one one corresponding relation with a curve.Fig. 4 is reseting stage GTG and the pulse voltage corresponding relation schematic diagram of the embodiment of the present invention, as shown in Figure 4, ordinate represents GTG, in figure, be expressed as 0～7 totally 8 GTGs, horizontal ordinate indicating impulse voltage number, in figure, be expressed as n0～n7, the one-to-one relationship of different GTGs and pulse voltage number has formed the reset GTG-pulse voltage curve shown in figure, this curvilinear coordinates nx (x=0,1,2......7) be that the different GTGs of previous frame image reset to the needed pulse voltage number of initial GTG.Suppose now i=3, can check in corresponding pulse voltage number by this curve is n3, and the value of supposing n3 is 32, represents that resetting to initial GTG 0 from GTG 3 need to impose 32 pulse voltages.
Wherein, the reason that image is resetted is, in actual applications, due to craft precision, film forming difference, the combined action of a variety of causes such as signal interference, likely occurs that some pixel is through pulse-length modulation (PWM, Pulse Width Modulation) fail completely accurately to change to the situation of corresponding GTG after driving, result is that actual displayed GTG and target gray scale exist fine difference.Due to the bistable characteristic of electronic ink material, unless this pixel can be carried out enough excessive pulses (only may appear at the highest and minimum gray scale of demonstration time) that applies just, otherwise this difference can be retained always, and then the later GTG that has influence on continuing shows.What is more important, if this demonstration difference is to be caused by the inherent defect of device or system, just also can produce same situation so afterwards.A large amount of grayscale difference will constantly be accumulated, until the many small grayscale difference that makes to occur in all or most of pixel runs up to the degree that makes whole display image screen occur difference.In order to eliminate this phenomenon, introduce image resetting technique.Image resetting technique can be full frame black reset, i.e. full frame insertion one width picture black and apply enough excessive pulses before showing next frame image, to ensure that all pixels all orientate high gray accurately as.(following various repositioning methods are analogized) can be also full frame white reset, or resets respectively or black and white inverted reset respectively according to the black and white of inferior frame GTG.
Obtaining from SDRAM1 after the luma data i of previous frame image, from SDRAM2, obtain again the luma data j of next frame image, then obtain image is shown to required demonstration pulse voltage data according to the luma data j of next frame image, the one-to-one relationship of described demonstration pulse voltage data different GTGs demonstration pulse voltage required with it when being shown as the image being made up of different GTG pixels is determined, particularly, described demonstration pulse voltage data are the number of times that next frame image is shown to required pulse voltage, to this, can represent one one corresponding relation with a curve equally.Fig. 5 is demonstration stage GTG and the pulse voltage corresponding relation schematic diagram of the embodiment of the present invention, as shown in Figure 5, ordinate represents GTG, in figure, be expressed as 0～7 totally 8 GTGs, horizontal ordinate indicating impulse voltage number, in figure, be expressed as m0～m7, the one-to-one relationship of different GTGs and pulse voltage number has formed the demonstration GTG-pulse voltage curve shown in figure, this curvilinear coordinates mx (x=0,1,2......7) be that the different GTGs of previous frame image reset to the needed pulse voltage number of initial GTG.Suppose now j=2, can check in corresponding pulse voltage number by this curve is m2, and the value of supposing m2 is 22, represents to show to GTG 2 and need to impose 22 pulse voltages from initial GTG 0.
It should be noted that, suppose to show that image is that 8 GTGs and whole driving are divided into 64 subframes resets equally and 64 subframes show totally 128 subframes in the present embodiment, the capacity of corresponding reset GTG-pulse voltage curve and demonstration GTG-pulse voltage curve required flash memory all at least only needs 6*8=48bits (expression 0～63 totally 64 numbers scale-of-two needs 6bits to realize), so altogether only need 48*2=96bits, compare with the capacity 16384bits of look-up table required flash memory corresponding in prior art, greatly saved storage space.
Get described reset voltage pulse data and showing after pulse voltage data, just can impose driving voltage to realize the demonstration from previous frame image to next frame image at data line.At reseting stage, by the pulse voltage of impose-15V, its umber of pulse is determined according to described reset voltage pulse data, for example, in the time that reset voltage pulse data are 32, impose the pulse voltage of 32-15V at reseting stage, because be assumed to be above, whole driving is divided into 64 subframes resets and 64 subframes show totally 128 subframes, at 64 subframe reseting stages, need to impose the pulse voltage of 32 0V as maintaining so; In the demonstration stage, by the pulse voltage of impose+15V, its umber of pulse is determined according to described demonstration pulse voltage data, for example, in the time showing that pulse voltage data are 22, impose the pulse voltage of 22+15V in the demonstration stage, then impose the pulse voltage of 42 0V as maintaining, the driving so just having completed from previous frame image to next frame image shows.As shown in Figure 6, Fig. 6 is the drive waveforms schematic diagram of the embodiment of the present invention to the oscillogram of above-mentioned whole process.
Maintaining in Electronic Paper drives is because all pixels are shown to the umber of pulse needing is different, so presumable pixel has driven, and some pixels also need to continue to impose pulse voltage, for example certain pixel shows from GTG 3 to GTG 2, need 32 pulse voltages at reseting stage from GTG 3 to GTG 0, to this pixel reseting stage be now, if but other certain pixel need to reset from GTG 7 to GTG 0, need 64 reset voltage pulses, now also keep in reseting procedure, when all pixels of whole image are considered together, the pixel first having driven is just entered and maintained, complete and carry out again next step action etc. all whole drivings.
The reset that adopts the driving method of Electronic Paper of the present invention to carry out the described image being made up of different GTG pixels is preferably one-way resetting, described in reset voltage pulse data described in inquiry reset GTG-pulse voltage curve acquisition and demonstration GTG-pulse voltage curve acquisition, shows pulse voltage data.But, in other embodiments, the driving method of Electronic Paper of the present invention also can be used for the situation of two-way reset, embodiment and embodiments of the invention are similar, but need to increase by one group of reset GTG-pulse voltage curve and demonstration GTG-pulse voltage curve that resets and show to other direction.
For implementing the driving method of Electronic Paper of the present invention, also provide a kind of drive unit of Electronic Paper.Fig. 7 shows the driving device structure schematic diagram of Electronic Paper provided by the invention, as shown in Figure 7, the drive unit of described Electronic Paper comprises the first storage unit 701 and the second storage unit 702, described the first storage unit 701 is for storing previous frame view data, described the second storage unit 702 is for storing next frame view data, also comprise the 3rd storage unit 703, control module 704 and driver element 705, described the 3rd storage unit 703 is for storing the reset voltage pulse data that reset required to previous frame image and next frame image being shown to required demonstration pulse voltage data, described control module 704 is for obtaining previous frame view data, next frame view data, obtain reset voltage pulse data according to described previous frame view data from described the 3rd storage unit 703, obtain and show pulse voltage data from described the 3rd storage unit 703 according to described next frame view data, and realize display driver according to driver element 705 described in described reset voltage pulse data, demonstration pulse voltage Data Control, described driver element 705, for accepting the control of described control module 704, imposes driving voltage to realize the demonstration from previous frame image to next frame image at data line.
Specific implementation process can, with reference to the driving method of Electronic Paper provided by the invention, not repeat them here.But it is to be noted, because considering described the 3rd storage unit 703 stores described reset voltage pulse data and shows that pulse voltage data require much smaller with respect to the required spatial content of look-up table stores drive waveforms of the prior art, so can be by setting up special register with storage, previous frame image is resetted and next frame image is shown to required pulse voltage data in driving chip, can save so the original flash memory that needs setting, reach the object reducing costs.
In addition, it will be appreciated by those skilled in the art that realizing all or part of of above-described embodiment is can carry out the hardware that instruction is relevant by program to complete, described program can be stored in computer-readable recording medium, and described storage medium can be ROM, RAM, magnetic disc, CD etc.
To sum up, the driving method of Electronic Paper provided by the invention and drive unit, at least have following beneficial effect:
Thereby the optimization of data processing method is simplified greatly to the process of data processing to improve the efficiency of data processing, reduced the required storage space of flash memory by the data file layout that changes waveform, thereby realized the object reducing costs.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can utilize method and the technology contents of above-mentioned announcement to make possible variation and amendment to technical solution of the present invention; therefore; every content that does not depart from technical solution of the present invention; any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all belong to the protection domain of technical solution of the present invention.
Claims (5)
1. a driving method for Electronic Paper, is characterized in that, comprising:
Obtain previous frame view data, according to described previous frame image data acquisition reset voltage pulse data, described reset voltage pulse data are to the reset number of times of required pulse voltage of previous frame image;
Obtain next frame view data, show pulse voltage data according to described next frame image data acquisition, described demonstration pulse voltage data are the number of times that next frame image is shown to required pulse voltage;
Described previous frame view data, next frame view data comprise the luma data of each pixel in a two field picture, when the image that described reset voltage pulse data are made up of different GTG pixels resets, the one-to-one relationship of different GTGs reset voltage pulse required with it is determined, the one-to-one relationship of described demonstration pulse voltage data difference GTGs demonstration pulse voltage required with it when being shown as the image being made up of different GTG pixels is determined;
Impose driving voltage to realize the demonstration from previous frame image to next frame image according to described reset voltage pulse data, demonstration pulse voltage data at data line.
2. the driving method of Electronic Paper according to claim 1, is characterized in that, what the described image being made up of different GTG pixels carried out is reset to one-way resetting.
3. the drive unit of an Electronic Paper, comprise the first storage unit and the second storage unit, described the first storage unit is used for storing previous frame view data, described the second storage unit is used for storing next frame view data, it is characterized in that, also comprise the 3rd storage unit, control module and driver element
Described the 3rd storage unit is for storing the reset voltage pulse data that reset required to previous frame image and next frame image being shown to required demonstration pulse voltage data, described reset voltage pulse data are to the reset number of times of required pulse voltage of previous frame image, described demonstration pulse voltage data are the number of times that next frame image is shown to required pulse voltage, described previous frame view data, next frame view data comprises the luma data of each pixel in a two field picture, when the image that described reset voltage pulse data are made up of different GTG pixels resets, the one-to-one relationship of different GTGs reset voltage pulse required with it is determined, the one-to-one relationship of described demonstration pulse voltage data different GTGs demonstration pulse voltage required with it when being shown as the image being made up of different GTG pixels is determined,
Described control module is used for obtaining previous frame view data, next frame view data, obtain reset voltage pulse data according to described previous frame view data from described the 3rd storage unit, obtain and show pulse voltage data from described the 3rd storage unit according to described next frame view data, and realize display driver according to driver element described in described reset voltage pulse data, demonstration pulse voltage Data Control;
Described driver element, for accepting the control of described control module, imposes driving voltage to realize the demonstration from previous frame image to next frame image at data line.
4. the drive unit of Electronic Paper according to claim 3, is characterized in that, what the described image being made up of different GTG pixels carried out is reset to one-way resetting.
5. the drive unit of Electronic Paper according to claim 3, it is characterized in that, described the 3rd storage unit be drive set up in chip for storing the reset voltage pulse data that reset required to previous frame image and the register that next frame image is shown to required demonstration pulse voltage data.
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| CN103208258B (en) * | 2012-01-16 | 2015-12-02 | 北京君正集成电路股份有限公司 | Electrophoresis showed control method and device thereof |
| CN105070254A (en) * | 2015-08-31 | 2015-11-18 | 深圳市国华光电科技有限公司 | Quick response method of multistage gray scale electrophoresis electronic paper |
| TWI715933B (en) * | 2016-02-08 | 2021-01-11 | 美商電子墨水股份有限公司 | Method for updating an image on a display having a plurality of pixels |
| CN114512105B (en) * | 2022-04-20 | 2022-08-09 | 惠科股份有限公司 | Image display method and display device |
| CN115862554B (en) * | 2022-12-19 | 2023-12-22 | 惠科股份有限公司 | Driving method of electronic ink and electronic paper |
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| CN1934612A (en) * | 2004-03-22 | 2007-03-21 | 皇家飞利浦电子股份有限公司 | 'rail-stabilized' (reference state) driving method with image memory for electrophoretic display |
| CN101567168A (en) * | 2009-06-04 | 2009-10-28 | 福州华映视讯有限公司 | Drive method of electrophoresis type display device and relevant device |
| CN101751867A (en) * | 2008-12-17 | 2010-06-23 | 乐金显示有限公司 | Electrophoresis display and driving method thereof |
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| JP5348363B2 (en) * | 2006-04-25 | 2013-11-20 | セイコーエプソン株式会社 | Electrophoretic display device, electrophoretic display device driving method, and electronic apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1934612A (en) * | 2004-03-22 | 2007-03-21 | 皇家飞利浦电子股份有限公司 | 'rail-stabilized' (reference state) driving method with image memory for electrophoretic display |
| CN101751867A (en) * | 2008-12-17 | 2010-06-23 | 乐金显示有限公司 | Electrophoresis display and driving method thereof |
| CN101567168A (en) * | 2009-06-04 | 2009-10-28 | 福州华映视讯有限公司 | Drive method of electrophoresis type display device and relevant device |
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