CN101542382A - Independent pixel waveforms for updating electronic paper displays - Google Patents
Independent pixel waveforms for updating electronic paper displays Download PDFInfo
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- CN101542382A CN101542382A CNA200880000560XA CN200880000560A CN101542382A CN 101542382 A CN101542382 A CN 101542382A CN A200880000560X A CNA200880000560X A CN A200880000560XA CN 200880000560 A CN200880000560 A CN 200880000560A CN 101542382 A CN101542382 A CN 101542382A
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Abstract
A system and a method are disclosed for updating an image on a bi-stable display includes a module for determining a final optical state, estimating a current optical state and determining a sequence of control signals to produce a visual transition effect while driving the display from the current optical state toward a final optical state. The system also includes a control module for generating a control signal for driving the bi-stable display from the current optical state to the final optical state.
Description
Technical field
The disclosure relates in general to the field of electric paper display.More specifically say, the present invention relates to upgrade electric paper display.
Background technology
Recently introduced several technology, it can provide some characteristics of paper in the display that upgrades electronically.Some desired characteristics that the display of the type is attempted the paper of realization comprise: the readability of low-power consumption, flexibility, wide visual angle, low cost, light weight, high resolving power, high-contrast and indoor and outdoors.Because these displays are attempted the characteristic of imitation paper, so in this application they are called electric paper display (EPD).Other title of this class display comprises: class paper display, zero power supply display, Electronic Paper and bistable display.
EPD and cathode ray tube (CRT) display or LCD (LCD) relatively demonstrate: generally speaking, EPD needs the power supply of much less and has higher spatial resolution, but shortcoming is lower renewal rate, the grey level control and the lower colour resolution of lower accuracy.A lot of electric paper displays are current only to be the gray level device.Usually make colour apparatus become available by adding color filter, this tends to reduce spatial resolution and contrast.
Electric paper display typically reflection-type rather than transmission-type.Therefore, they can environment for use light and do not need light source in devices.This allows EPD to keep image and do not use power supply.Because can show black or white pixel constantly, and if only if when a state is changed into another, need power supply, so sometimes they are called " bistable state ".But a lot of EPD devices are stable at a plurality of states, and therefore support a plurality of grey levels and do not have power consumption.
The low power supply of EPD makes that they are useful especially for the very valuable mobile device of battery supply wherein.E-book is the common application of EPD, and therefore part is acceptable to the user because slow renewal rate is similar to the time that page turning needs.EPD have with stationery like characteristic, this also makes e-book become common application.
Though electric paper display has lot of advantages, also there is shortcoming.Specifically, a problem is known as afterimage.Afterimage refers to the observability of the previous image that shows in new or successive image.Even old image can continue after the image that refresh display makes new advances with demonstration, perhaps as fuzzy erect image (common) or as fuzzy negative-appearing image (dark areas in the wherein previous image occurs as brighter a little zone in present image).This effect is called as " afterimage " (ghosting), and this is because before the fuzzy marking of image still as seen.This afterimage effect can confuse text image especially, and this is because may be actually readable from the text of previous image in present image.In the face of the human reader of " afterimage " pseudomorphism (artifact) has the trend of the nature of attempting the decipher implication, make that the demonstration with afterimage is difficult to read.
Be used to reduce error, a method that reduces afterimage thus is to apply enough voltage on the time cycle of growing, to make pixel be saturated to black or pure white before the reflectivity of pixel being guided to their needs.Fig. 1 illustrates the technology of the renewal electric paper display of prior art.Here, use the display control signal (waveform) of immediately each pixel not being guided to required end value.Original image 110 is the capitalizations " X " that present with black on white background.At first, all pixels are moved towards white states, shown in second image 112, afterwards all pixels are moved towards black state, shown in the 3rd image 114, afterwards all pixels are moved to white states once more, shown in the 4th image 116, and at last the value of all pixels towards their next required image moved, shown in the image 118 that produces.Here, next required image is the capitalization " O " of black on white background.Because the cause of all intermediate steps, therefore this processing takies the longer time than directly upgrading.But, move pixel towards white and black state and tend to remove some afterimage pseudomorphisms, but can not remove whole afterimage pseudomorphisms.
Pixel is set helps aligned optical states to white or black level value, this is because all pixels tend at identical point saturated and ignore original state.The afterimage minimizing method of some prior aries with than the bigger power drives pixel of required in theory power supply to reach black state or white states.Extra power supply has guaranteed to obtain complete saturated state and has ignored previous state.In some cases, the long-time frequent supersaturation of pixel may cause some changes of physical medium, and this may make its controllability reduce.
The afterimage of prior art reduces one of undesirable reason of technology and is that the pseudomorphism in the present image is the significant part of previous image.This content at required image and present image is problematic especially when all being text.In this case, in the white space of present image, can be noted especially from the letter or the word of previous image.For human reader, have the trend naturally of attempting reading this afterimage text, and this has disturbed the understanding to present image.The afterimage minimizing technology of prior art attempts reducing these pseudomorphisms by the difference that minimizes between two pixels that should have identical value in final image.
Undesirable another reason of above-mentioned prior art is because it produces flash of light (flashing) outward appearance at image during to the next one from an image modification.This flash of light is very disgusting for the observer, and gives the quality that presents of image modification " slideshow ".
Therefore, height need have the method that is used to upgrade electric paper display, when wherein upgrading new image on display screen, reduces the error in the successive image, show " afterimage " pseudomorphism still less thus, and do not having effect unwanted and that hinder during to the next one from an image transitions.
Summary of the invention
An embodiment who is used to upgrade the system of the image on the bistable display comprises and is used for determining final optical states, and the sequence of estimating current optical states and determining control signal is to produce the module of vision conversion effect from current optical states towards final optical states driving display the time.This system also comprises the control module that is used to produce control signal, and this control signal is used for bistable display is driven into final optical states from current optical states.
An embodiment who is used to upgrade the method for bistable display comprises and determines required optical states and estimate current optical states.This method also comprises to present image and applies direct driving to show required image.This method comprises that further the sequence that applies control signal is to produce the vision conversion effect with display from current optical states when final optical states drives.
The feature and advantage of describing in instructions are not to be inclusive entirely, and specifically, by considering accompanying drawing, instructions and claims, a lot of supplementary features and advantage are conspicuous to those skilled in the art.In addition, should be noted that the language that in instructions, uses, rather than select to describe or limit disclosed theme mainly for readable and instruct purpose and select.
Description of drawings
Disclosed embodiment has other advantage and feature, its by specify, appending claims and accompanying drawing (or figure) will be more readily understood.Briefly introducing of accompanying drawing is as follows.
Fig. 1 illustrates the diagrammatic representation that is used to reduce the successive frame that the technology of afterimage pseudomorphism produces by prior art.
Fig. 2 illustrates the model according to the typical electronic paper display of some embodiment.
Fig. 3 illustrates the high level flow chart according to the method for the renewal bistable display of some embodiment.
Fig. 4 illustrates the block diagram according to the Electronic Paper display system of some embodiment.
Fig. 5 illustrates the visual representation according to the method for the renewal bistable display of some embodiment.
Accompanying drawing has only been described a plurality of embodiment of the present invention for illustrated purpose.Those skilled in the art will approve under the situation that does not break away from the principle of describing of the present invention here from following discussion easily, can adopt the embodiment that substitutes of illustrated structure and method here.
Embodiment
Accompanying drawing (figure) and following description only relate to preferred embodiment in the mode of explanation.Should note from following discussion, can be easily the embodiment that substitutes of disclosed structure and method here be identified as the viable option that can adopt under the situation that does not break away from desired principle.
As here using, for " embodiment ", any reference of " embodiment " or " some embodiment " means that element-specific, feature, structure or the characteristic described in conjunction with the embodiments are included among at least one embodiment.A plurality of local phrases " in one embodiment " that occur are not all to refer to identical embodiment in instructions.
Can use statement " coupling " and " connection " and their usage of deriving to describe some embodiment.Should be appreciated that what these terms were not intended to synonym each other.For example, can use term " connection " to describe some embodiment is in direct physical contact with each other or electric contact to indicate two or more elements.In another embodiment, use term " coupling " to describe some embodiment to indicate two or more element direct physical contacts or electric contact.But term " coupling " can mean that also two or more elements are not in direct contact with one another, but still cooperation or mutual each other.Embodiment is not limited in the context herein.
As used herein, term " comprises ", and " comprising ", " having " or its other distortion arbitrarily are intended to cover non-exclusive comprising.For example, the processing, method, article or the equipment that comprise a column element are not to only limit to those elements, but can comprise other element that processing that do not list clearly or this, method, article or equipment are intrinsic.In addition, be opposite implication unless conclusively show out, " or " be meant comprising property or rather than exclusiveness or.For example, be that true (or existence) and B are false (or not existing) by following any one satisfy condition A or B:A, A is that false (or not existing) and B are true (or not existing), and A and B are true (or existence).
In addition, use " one " or " one " to be described in element and the parts of the embodiment here.This only is for convenience, and provides general understanding of the present invention and carry out.This description should be understood to include one or at least one, and odd number also comprise a plurality of/a plurality of, unless clearly be not this implication.
To carry out detailed reference to several embodiment now, illustrate the example of embodiment in the accompanying drawings.Notice that similar or similar Reference numeral can be used in the accompanying drawing in any feasible place, and can indicate similar or similar functional.Accompanying drawing has only been described the embodiment of disclosed system (or method) for illustrative purposes.Those skilled in the art will easily approve from the following describes under the situation that does not break away from the principle of describing here, can adopt the embodiment that substitutes of illustrated structure and method here.
The exemplary model of electric paper display
Fig. 2 illustrates the model 200 according to the typical electronic paper display of some embodiment.This model 200 shows three parts of electric paper display: albedo image (reflectance image) 202; Physical medium 220 and control signal 230.Concerning the terminal user, most important parts is an albedo image 202, and this albedo image 202 is the amounts at the light of each pixel place reflection of display.High reflectance guiding is as at the white pixel shown in the left side (204A), and the antiradar reflectivity guiding is as at the black picture element shown in the right side (204C).Some electric paper displays can be kept the intermediate value of reflectivity of guiding gray pixels, as at (204B) shown in the centre.
Electric paper display has some physical mediums of the state of can keeping.In the physical medium 220 of electrophoretic display device (EPD), this state is the position of the one or more particles 206 (for example, the white particle in dark-coloured fluid) in the fluid.In other embodiment of the display that uses other type, can pass through the relative position of two kinds of fluids, or determine state by the rotation of particle or by the orientation of some structures.In Fig. 2, represent state by the position of particle 206.As fruit granule 206 top (222) near physical mediums 220, that is, white states, reflectivity height then, and pixel is perceived as white.As the bottom (224) of fruit granule 206 near physical medium 220, that is, black state, then reflectivity is low, and pixel is perceived as black.
No matter what concrete device is, for zero-power, needs can be kept this state and not need any power supply.Therefore, control signal 230 as shown in Figure 2 must be looked at as the signal that applies for physical medium arrives the position of indication.Therefore, apply control signal 232 with positive voltage with towards the top (222), that is, white states drives white particle, and applies control signal 234 with negative voltage with towards the bottom (224), that is, black state drives black particle.
The reflectivity of pixel changes along with applying voltage among the EPD.The amount that pixel reflectivity changes can be depending on amount and the time span to its voltage that applies, and no-voltage makes the reflectivity of pixel not change simultaneously.
The method general introduction
Fig. 3 illustrates the high level flow chart of method 300 that is used to upgrade bistable display according to some embodiment.At first, determine required optical states 302.In certain embodiments, required optical states is the image that apply reception of each position from being made of required pixel value for display.In another embodiment, required optical states is the renewal to some zones of display.Determine display is driven into final image required voltage amount from present image.Afterwards, determine the estimated state 304 of current optical states.In certain embodiments, suppose that simply current optical states is previous required optical states.In other embodiments, determine current optical states from sensor, or from display previous control signal and some physical models estimate current optical states.
Afterwards, by through the reasonable time amount with voltage be applied to each pixel in the present image with fast near the new value of the pixel in the required image, and pixel directly is driven into value 306 near their required reflectivity from current reflectivity.In certain embodiments, by using constant voltage and apply this voltage realizing required reflectivity, and realize this conversion in the certain hour cycle.For example, can apply-voltage of 15V 300 milliseconds (ms) to be to change into black with pixel from white, can apply simultaneously+the voltage 140ms of 15V to be to change into white with pixel from grey.When this direct actuation step finishes, required image will be on display as seen, but because about the uncertainty of the definite reflectance value of each pixel in the original image, and because the voltage and the voltage that can apply lack enough granularities (granularity) in the duration, also comprise error (specifically, afterimage pseudomorphism).In the embodiment that substitutes, can apply-voltage 300 milliseconds (ms) of 15V can apply so that pixel is changed into white from black simultaneously+the voltage 140ms of 15V to be to change into grey with pixel from white.
Therefore, for realize final image and the generation happier transition status from the present image to the required image with the afterimage pseudomorphism that reduces, apply afterimage technology 308.With the numeral of each element marking scope from 1 to N.In certain embodiments, N=16 and each pixel of mark randomly make the mark of pixel unlikely near the mark of neighbor arbitrarily.Because element marking only depends on the position, in certain embodiments, can calculate mark in advance, and label table can be shown the image file that comprises random noise, wherein filter out this random noise to avoid assembling (clustering).In other embodiments, can also create indicia patterns by the precalculated pattern that has filtered noise of tiling demonstration.In another embodiment, (on the fly) calculates mark at once.Can adopt the algorithm of a lot of filtered noises.In other embodiments, also can adopt unfiltered noise.
In case mark pixel, the waveform (contact potential series) that upgrades is put on each pixel, wherein apply different wave for each mark.These waveforms are formed by beginning delay (onset delay) and the afterimage sequence of going afterwards, design this and go the amount of afterimage sequence with error in the reflectivity that reduces pixel, and do not change the specified gray-scale value of pixel.In certain embodiments, the waveform that puts on pixel for each mark is a reference waveform, its with pixel saturated be white, saturated for black afterwards, get back to white afterwards, and afterwards pixel is finally brought back to initial starting value once more, begin to postpone but have, make each shift time the different of certain hour amount be arranged with its adjacent marker.For example, if shift time is 80ms, the pixel that then has mark 1 begins their converted-wave.After this, after the 80ms, ensuing pixel will have their converted-wave.
For this effect is described, be the table of the skew of exemplary mark and distribution below.
| Mark | Skew (ms) |
| 1 | 0 |
| 2 | 80 |
| 3 | 160 |
| 4 | 240 |
| 5 | 320 |
| 6 | 400 |
| 7 | 480 |
| 8 | 560 |
| 9 | 640 |
| 10 | 720 |
| 11 | 800 |
| 12 | 880 |
| 13 | 960 |
| 14 | 1040 |
| 15 | 1120 |
| 16 | 1200 |
In above-mentioned exemplary table, each pixel of mark " 1 " will be in time zero their converted-wave of beginning.80ms began their converted-wave after the pixel of mark " 2 " will begin in the pixel of mark " 1 ".80ms after the pixel of mark " 3 " will begin in the pixel of mark " 2 ", or 160ms begins their converted-wave after the pixel of mark " 1 " begins.
In certain embodiments, the reference waveform that is provided by certain electric paper display only continues cycle regular hour.For example, the reference waveform that is provided by some electric paper display continues 720ms.Therefore, suppose above-mentioned exemplary table, when the waveform of the pixel of mark " 1 " finished its whole sequence, mark " 2 " arrives the pixel of " 7 " will be still in the display process process.
In certain embodiments, mark is not selected at random, but selects to produce the conversion with animation effect from an image to next image.In certain embodiments, the sequence of the mark of the pixel of selection and voltage produces multiple visual effect in the transition period from an image to next image.For example, as mentioned above, in certain embodiments, outward appearance below the mark of the pixel of selecting and the sequence of voltage produce, promptly, present image is changed into next image at first fast, is the cycle that may look like TV static on whole screen afterwards, and the afterimage pseudomorphism disappears arbitrarily during this cycle.In other embodiments, skipping " directly drive " stage and select time offset voltage sequence makes their reduce afterimage pseudomorphism and drives pixel to their required values.In these embodiments, the sequence of the mark of the pixel of selection and the voltage top that is created in screen begins and lasts till the flickering vision effect of the bottom of screen.When the downward inswept screen of bright line, pixel is changed into their new value from their old value, provides " wiping " effect that may see when changing into new lantern slide in lantern slide (PowerPoint) statement.In another embodiment, the sequence of the mark of the pixel of selection and the voltage bottom that is created in screen begins and lasts till the flickering vision effect at the top of screen.In some other embodiment, the right side that the mark of the pixel of selection and the sequence of voltage are created in screen begins and lasts till the flickering vision effect in the left side of screen.In some other embodiment, the left side that the mark of the pixel of selection and the sequence of voltage are created in screen begins and lasts till the flickering vision effect on the right side of screen.In another embodiment, the sequence of the mark of the pixel of selection and the voltage drift angle that is created in screen begins and lasts till the flickering vision effect of the relative angle of screen.In another embodiment, the sequence of the mark of the pixel of selection and the voltage base angle that is created in screen begins and lasts till the flickering vision effect of the relative angle of screen.
Upgrade in case pixel has all been passed through their suitable waveforms, show final image 310.Above-mentioned steps helps to reduce this afterimage of sum of errors on the electric paper display by producing the happy more vision conversion from present image to next required image, and the flash of light that does not perceive undesirably.The minimizing of the flash of light of this perception comes from by " at random " labeling method and as described above the waveform of each pixel and the waveform of neighbor is offset temporarily.Whole effect is perceived as random noise disturbance (the spitting image of the static on TV screen), rather than unexpected flashlight images.The effect of this " flicker " type does not more disturb the judgement, and the similar outward appearance of present image being dissolved and is converted to required image.
Fig. 4 illustrates the block diagram according to the Electronic Paper display system of some embodiment.To be provided in the system 400 with the data 402 that required image or first image are associated.
In certain embodiments, revise the waveform that uses in the system of Fig. 4 by system handles controller 422.In certain embodiments, revise the required image of the remainder that offers system 400 by optional frame buffer 502 and system handles controller 422, this is because known physical medium 412, and image reflection rate 414 and human viewer be the cause of copic viewing system how.A lot of embodiment described herein can be integrated in the display controller 410, still, in this embodiment, except Fig. 4, they be described in the mode that works independently.
The image file of noise has been filtered in generation.Each pixel is set to value between 0 to 15 randomly, wherein higher probability is given value away from adjacent pixel values.In certain embodiments, disposable generation this filtered the image file of noise and used it for method 300 each apply to upgrade bistable display.
Send required view data 402 afterwards, and storage in current required image impact damper 404, this current required image impact damper 404 comprises the information that is associated with current required image.Previous required image impact damper 406 at least one previous image of storage are to determine how display 416 is changed into new required image.Previous required image impact damper 406 is to receive present image from current required image impact damper 404 in case refresh display 416 to demonstrate current required image, is coupled.
In certain embodiments, produce two wave files.A wave file is used for directly driving the stage, and another wave file is used to the afterimage stage.In certain embodiments, this wave file coding cubical array, preceding two axles are previous pixel value and required pixel value (all being down sampled to from 0 to 15 value), and the 3rd axle be frame number, wherein per 20 milliseconds frames occur.
Directly the drive waveforms file applies voltage for equaling the number that desirable value deducts the frame of preceding value to pixel.In certain embodiments, negative value indication negative voltage.For example, in certain embodiments, for being transformed into dull gray reflectivity (dark gray reflectance) (4) from white reflection rate (15), apply-waveform of 15V for 9 frames, 9 frames equal 180 milliseconds.
Typically, controller will receive previous image, required image and wave file, and which kind of contact potential series controller will from wherein determining to apply.Upgrade because before carried out direct driving in step 306 (Fig. 3), previous image and required image are with identical.Therefore, the image file that instead will filter noise sends to display controller 410 as required image.In certain embodiments, wave file can be sent to controller as table, wherein this table comprises the information about previous image, about the information of required image, and frame number.In this case, carry out inquiry to determine to apply which voltage.By general wave file, this will show the random noise image, remove the afterimage wave file but write, and make all contact potential series experience of its generation remove the afterimage waveform, and get back to original pixel value afterwards, specify which desirable value and ignore.Time migration when instead using the desirable value axle to begin to select specific waveforms.As terminal stage, with actual required image refresh display, but has the empty waveform that does not apply voltage, the feasible image that previous required image impact damper 406 is reset to correct value rather than filtered noise.
To send to display controller 410 and be converted into control signal by the waveform that wave memorizer 408 produces by display controller 410.Display controller 410 puts on physical medium with the control signal of conversion.With control signal put on physical medium 412 with the suitable state that particle moved to they to realize required image.Apply the control signal that produces by display controller 410 at suitable voltage and for the time quantum of determining, so that physical medium 412 is driven into required state.
For the traditional monitor such as CRT or LCD, input picture can be used in the voltage of selecting driving display, and is continuously applied the same electrical straightening till new input picture is provided in each pixel.But under the situation of the display with this state, the correct voltage that applies depends on current state.For example, if previous image is identical with required image, then do not need to apply voltage.But, if previous image was different with required image, then need be based on the state of present image, the time quantum of realizing the required state of required image and arriving required state applies voltage.For example, be white if previous image was black and required image, then can apply positive voltage for certain time span, realizing white image, and if previous image be that white and required image are black, then apply negative voltage to realize required black image.Therefore, display controller among Fig. 4 410 uses information in current required image impact damper 404 and the previous frame buffer 406 selecting waveform 408, thereby pixel is transformed into required state from current state.
According to some embodiment, may need to finish for a long time renewal.Some waveforms that are used to reduce the afterimage problem are very long, even and short waveform also may need 300ms to come refresh display.Because how the optical states that needs to keep following the tracks of pixel changes into next required image with it with understanding, thereby some controllers do not allow to change required image at reproducting periods.Therefore, if use the input of attempting in response to the people, change display such as the input from pen, mouse or other input media, so Once you begin first display update can not begin next renewal in 300ms.To can't see the new input that receives immediately after the beginning display update in 300ms, this is for a lot of interactive application, picture for example, even or the roll screen display also be unallowed.
By most of current hardware, have no idea from image reflection rate (image reflectance) 414 and directly read current reflectance value; Therefore, can use the empirical data of physical medium 412 of display characteristic of image reflection rate 414 or model and the knowledge of the previous voltage that applied is estimated their value.In other words, to handle be open-loop control system in the renewal that is used for image reflection rate 414.
Determine next show state by display controller 410 control signal that produces and the current state that is stored in the display in the previous frame buffer 406.With control signal put on physical medium 412 with the suitable state that particle moved to they to realize required image.Apply the control signal that produces by display controller 410 at suitable voltage and for the time quantum of determining, so that physical medium 412 is driven into required state.Display controller 410 determines that the sequence of the control signal that applies is to produce the suitable conversion from an image to next image.On image reflection rate 414, correspondingly show conversion effect, and this conversion effect to be that human viewer is passed through physical display 416 visible.
In certain embodiments, the residing environment of display, how specifically lighting condition, and human viewer watches albedo image 414 to determine final image 418 by physical medium 416.Usually, display is intended to be used for human user, and the human visual system plays a big part on the picture quality of perception.Therefore, between required reflectivity and actual reflectance, have only some pseudomorphisms of little difference may be more offensive than some bigger variations that more are not easy in some albedo image perceive by the people.Design some embodiment and have image with the big difference of required albedo image with generation, but by the image of better perception.Half-tone picture similarly is an example of this image.
The explanation of technology
Fig. 5 illustrates the visual representation 500 according to the method for the renewal bistable display of some embodiment.This visual representation 500 has been described during upgrading the method 300 of bistable display the series of displays output that shows on will the display at bistable display.This visual representation 500 shows initial pictures 502 and the final image 504 that shows in certain embodiments on the display of electric paper display.Intermediate image 506 illustrates to intermediate image 508 and takes place directly to upgrade, and in direct renewal, the pixel of display directly is driven into value near their required reflectivity from current reflectivity.Intermediate image 512 illustrates afterimage to final image 504 and upgrades.The result shows the pseudomorphism of less " afterimage " when upgrading new image on display screen, and does not have effect undesirable and that hinder when the conversion from an image to next image.
When reading the disclosure, those skilled in the art will approve by principle disclosed herein, still have the other 26S Proteasome Structure and Function that the substitutes design for system that upgrades electric paper display and processing.Therefore, though the diagram and specific embodiment and application have been described, should be appreciated that disclosed embodiment is not limited to concrete structure disclosed herein and parts.Under the situation that does not break away from the spirit and scope that limit as appended claims, various modifications, change and the change that can it will be apparent to those skilled in the art here setting, operation and the details of disclosed method and apparatus.
The U.S. priority application No.60/944 that the application submitted to based on June 15th, 2007, the U.S. priority application No.12/059 that on March 31st, 415 and 2008 submitted to, 399, in view of the above its full content is incorporated herein by reference.
Claims (28)
1. method that is used to upgrade the image on the bistable display comprises:
Be identified for a plurality of distinct sequences of the control signal that a plurality of pixels with bistable display drive from current state towards end-state; With
For at least some pixels of a plurality of pixels of bistable display, select to be used for the sequence of pixel and to apply described sequence to described pixel,
Wherein, the selected sequence that is used for described pixel produces conversion effect when bistable display being driven into final required state.
2. method according to claim 1, wherein, described a plurality of distinct sequences are to produce from unique sequence by insert specifying the zero that should not apply voltage or more a plurality of frame.
3. method according to claim 1, wherein, the described sequence that puts on pixel is a random choose from the group of possible sequence.
4. method according to claim 1, wherein, described sequence to the small part that puts on pixel is selected based on locations of pixels in the display.
5. method according to claim 1, wherein, the described sequence that puts on pixel is to select based on the signal that will put on neighbor to small part.
6. method according to claim 1, wherein, described conversion effect begins in the bottom of bistable display and moves towards the top of bistable display.
7. method according to claim 1, wherein, described conversion effect begins at the top of bistable display and moves towards the bottom of bistable display.
8. method according to claim 1, wherein, described conversion effect begins on the right side of bistable display and moves towards the left side of bistable display.
9. method according to claim 1, wherein, described conversion effect begins and moves towards the relative angle of bistable display at bistable display one jiao.
10. system that is used to upgrade the image on the bistable display comprises:
Be identified for the device of a plurality of distinct sequences of the control signal that a plurality of pixels with bistable display drive from current state towards end-state; With
At least some pixels for a plurality of pixels of bistable display, selection is used for the sequence of pixel and applies the device of described sequence to described pixel, wherein, the selected sequence that is used for described pixel produces conversion effect when bistable display being driven into final required state.
11. system according to claim 10, wherein, described a plurality of distinct sequences are to produce from unique sequence by insert specifying the zero that should not apply voltage or more a plurality of frame.
12. system according to claim 10, wherein, the described sequence that puts on pixel is a random choose from the group of possible sequence.
13. system according to claim 10, wherein, described sequence to the small part that puts on pixel is selected based on locations of pixels in the display.
14. system according to claim 10, wherein, the described sequence that puts on pixel is to select based on the signal that will put on neighbor to small part.
15. system according to claim 10, wherein, described conversion effect begins in the bottom of bistable display and moves towards the top of bistable display.
16. system according to claim 10, wherein, described conversion effect begins at the top of bistable display and moves towards the bottom of bistable display.
17. system according to claim 10, wherein, described conversion effect begins on the right side of bistable display and moves towards the left side of bistable display.
18. system according to claim 10, wherein, described conversion effect begins and moves towards the relative angle of bistable display at bistable display one jiao.
19. an equipment that is used to upgrade the image on the bistable display comprises:
Determine the module of first sequence so that bistable display is driven from current state towards end-state of control signal, first sequence of wherein said control signal is that part is selected based on the control signal that will put on neighbor; With
First sequence that applied control signal before bistable display being driven into final required state is to drive the module that bistable display produces conversion effect.
20. an equipment that is used to upgrade the image on the bistable display comprises:
Be identified for the module of a plurality of distinct sequences of the control signal that a plurality of pixels with bistable display drive from current state towards end-state; With
For at least some pixels of a plurality of pixels of bistable display, select to be used for the sequence of pixel and apply the module of described sequence to described pixel,
Wherein, the selected sequence that is used for described pixel produces conversion effect when bistable display being driven into final required state.
21. equipment according to claim 20, wherein, described a plurality of distinct sequences are to produce from unique sequence by insert specifying the zero that should not apply voltage or more a plurality of frame.
22. equipment according to claim 20, wherein, the described sequence that puts on pixel is a random choose from the group of possible sequence.
23. equipment according to claim 20, wherein, described sequence to the small part that puts on pixel is selected based on locations of pixels in the display.
24. equipment according to claim 20, wherein, the described sequence that puts on pixel is to select based on the signal that will put on neighbor to small part.
25. equipment according to claim 20, wherein, described conversion effect begins in the bottom of bistable display and moves towards the top of bistable display.
26. equipment according to claim 20, wherein, described conversion effect begins at the top of bistable display and moves towards the bottom of bistable display.
27. equipment according to claim 20, wherein, described conversion effect begins on the right side of bistable display and moves towards the left side of bistable display.
28. equipment according to claim 20, wherein, described conversion effect begins and moves towards the relative angle of bistable display at bistable display one jiao.
Applications Claiming Priority (5)
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| US94441507P | 2007-06-15 | 2007-06-15 | |
| US60/944,415 | 2007-06-15 | ||
| US12/059,399 US8355018B2 (en) | 2007-06-15 | 2008-03-31 | Independent pixel waveforms for updating electronic paper displays |
| US12/059,399 | 2008-03-31 | ||
| PCT/JP2008/061273 WO2008153212A1 (en) | 2007-06-15 | 2008-06-13 | Independent pixel waveforms for updating electronic paper displays |
Publications (2)
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| CN101542382A true CN101542382A (en) | 2009-09-23 |
| CN101542382B CN101542382B (en) | 2012-05-30 |
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| CN200880000560XA Expired - Fee Related CN101542382B (en) | 2007-06-15 | 2008-06-13 | Independent pixel waveforms for updating electronic paper displays |
| CN2008800005455A Expired - Fee Related CN101558371B (en) | 2007-06-15 | 2008-06-13 | Pen tracking and low latency display updates on electronic paper displays |
| CN2008800005563A Expired - Fee Related CN101542381B (en) | 2007-06-15 | 2008-06-13 | Video playback on electronic paper displays |
| CN2008800007145A Expired - Fee Related CN101542384B (en) | 2007-06-15 | 2008-06-13 | Spatially masked update for electronic paper displays |
| CN2008800007253A Expired - Fee Related CN101542385B (en) | 2007-06-15 | 2008-06-13 | Full framebuffer for electronic paper displays |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008800005455A Expired - Fee Related CN101558371B (en) | 2007-06-15 | 2008-06-13 | Pen tracking and low latency display updates on electronic paper displays |
| CN2008800005563A Expired - Fee Related CN101542381B (en) | 2007-06-15 | 2008-06-13 | Video playback on electronic paper displays |
| CN2008800007145A Expired - Fee Related CN101542384B (en) | 2007-06-15 | 2008-06-13 | Spatially masked update for electronic paper displays |
| CN2008800007253A Expired - Fee Related CN101542385B (en) | 2007-06-15 | 2008-06-13 | Full framebuffer for electronic paper displays |
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| CN103778891A (en) * | 2012-10-22 | 2014-05-07 | 苏州宝翼信息科技有限公司 | Page-turning method for electronic book |
| CN107393482A (en) * | 2013-07-31 | 2017-11-24 | 伊英克公司 | Method for driving electro-optic displays |
| CN112750407A (en) * | 2015-04-27 | 2021-05-04 | 伊英克公司 | Method and apparatus for driving display system |
| CN115359760A (en) * | 2022-08-16 | 2022-11-18 | 广州文石信息科技有限公司 | Waveform sequence-based ink screen display control method and device |
| CN116543711A (en) * | 2023-05-12 | 2023-08-04 | 广州文石信息科技有限公司 | Clear screen display method, device and equipment of ink screen and storage medium |
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| CN102044205B (en) * | 2009-10-20 | 2012-11-28 | 晶宏半导体股份有限公司 | Electronic paper apparatus display method |
| CN102087833A (en) * | 2009-12-08 | 2011-06-08 | 盛大计算机（上海）有限公司 | Method for refreshing e-book reader |
| JP5640451B2 (en) * | 2010-05-13 | 2014-12-17 | セイコーエプソン株式会社 | Display device control method, display device, and display device control device |
| US9171507B2 (en) * | 2010-07-16 | 2015-10-27 | Marvell World Trade Ltd. | Controller for updating pixels in an electronic paper display |
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| CN108008963B (en) * | 2017-12-22 | 2020-07-24 | 联想(北京)有限公司 | Application processing method and system adaptive to EINK equipment |
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| CN102789764B (en) * | 2001-11-20 | 2015-05-27 | 伊英克公司 | Methods for driving bistable electro-optic displays |
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| JP2007523390A (en) * | 2004-02-24 | 2007-08-16 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Electrophoretic display device |
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| TW200625223A (en) * | 2004-04-13 | 2006-07-16 | Koninkl Philips Electronics Nv | Electrophoretic display with rapid drawing mode waveform |
-
2008
- 2008-06-13 CN CN200880000560XA patent/CN101542382B/en not_active Expired - Fee Related
- 2008-06-13 CN CN2008800005455A patent/CN101558371B/en not_active Expired - Fee Related
- 2008-06-13 CN CN2008800005563A patent/CN101542381B/en not_active Expired - Fee Related
- 2008-06-13 CN CN2008800007145A patent/CN101542384B/en not_active Expired - Fee Related
- 2008-06-13 CN CN2008800007253A patent/CN101542385B/en not_active Expired - Fee Related
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| CN107393482A (en) * | 2013-07-31 | 2017-11-24 | 伊英克公司 | Method for driving electro-optic displays |
| CN112750407A (en) * | 2015-04-27 | 2021-05-04 | 伊英克公司 | Method and apparatus for driving display system |
| CN112750407B (en) * | 2015-04-27 | 2023-11-07 | 伊英克公司 | Electro-optic display |
| CN115359760A (en) * | 2022-08-16 | 2022-11-18 | 广州文石信息科技有限公司 | Waveform sequence-based ink screen display control method and device |
| CN116543711A (en) * | 2023-05-12 | 2023-08-04 | 广州文石信息科技有限公司 | Clear screen display method, device and equipment of ink screen and storage medium |
| CN116543711B (en) * | 2023-05-12 | 2023-11-03 | 广州文石信息科技有限公司 | Clear screen display method, device and equipment of ink screen and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101558371A (en) | 2009-10-14 |
| CN101542385B (en) | 2012-07-18 |
| CN101542382B (en) | 2012-05-30 |
| CN101542384A (en) | 2009-09-23 |
| CN101542384B (en) | 2011-01-12 |
| CN101542385A (en) | 2009-09-23 |
| CN101542381A (en) | 2009-09-23 |
| CN101558371B (en) | 2012-10-10 |
| CN101542381B (en) | 2012-02-29 |
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