CN102214426B - Pixel driving method of bistable display - Google Patents
Pixel driving method of bistable display Download PDFInfo
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- CN102214426B CN102214426B CN 201010149631 CN201010149631A CN102214426B CN 102214426 B CN102214426 B CN 102214426B CN 201010149631 CN201010149631 CN 201010149631 CN 201010149631 A CN201010149631 A CN 201010149631A CN 102214426 B CN102214426 B CN 102214426B
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Abstract
The invention provides a pixel driving method of a bistable display. The pixel driving method is suitable for driving the bistable display comprising a plurality of pixels. The pixel driving method of the bistable display comprises the following steps of: in a preset time section, increasing a preset driving force for presetting and driving the pixels to a big driving force; in the preset time section, using the big driving force to drive the pixels respectively; and out of the preset time section, driving the pixels respectively according to the preset driving force for presetting and driving the pixels. Thus, by application of the pixel driving method, the picture switching speed of the bistable display is effectively improved.
Description
Technical field
The present invention relates to a kind of flat-panel screens, particularly relate to a kind of image element driving method of bistable display.
Background technology
Along with the fast development of display technique, flat-panel screens has been applied to various demonstrations fields more and more widely.And bistable display has the feature performance benefits such as low energy consumption, high reflectance and high-contrast due to it, has become a kind of more and more important flat-panel screens.
Seeing also shown in Figure 1ly, is a kind of diagrammatic cross-section of bistable display.Wherein, bistable display 10 can be the electrophoresis type display with a plurality of pixels, as the microcapsules electrophoresis type display.Particularly, bistable display 10 has substrate 11,12 and be located in electrophoretic layer 13 between two substrates 11,12, and wherein electrophoretic layer 13 has a plurality of microcapsules (microcapsule) 14.Each microcapsules 14 is interior to be filled with respectively insulation impregnant (dielectric solvent) 16 and to intersperse among the interior charged colored particles (charged pigment particle) 17 of insulation impregnant 16.Bistable display 10 is by the data line that is arranged at substrate 11, one of 12 intersection and sweep trace (not shown) and be divided into a plurality of pixels, and each pixel drives respectively the charged colored particles 17 in insulation impregnant 16 by being arranged at common electrode on substrate 11,12 and the pressure reduction between pixel electrode, thereby makes each pixel present respectively corresponding GTG with display frame on bistable display 10 (frame).This technology is well known to those skilled in the art, and does not repeat them here.
The existing known image element driving method that is applied to bistable display 10 is to drive each pixel according to a predetermined table-drive, wherein above-mentioned predetermined table-drive has defined under various situations in order to drive the corresponding a plurality of motivation values of each pixel, and each motivation value corresponds respectively to a preset driving force.Then supply relevant data current potential to the corresponding pixel electrode of each pixel and provide corresponding common electric potential to common electrode according to above-mentioned preset driving force, with by the data current potential at each pixel two ends and the pressure reduction between common electric potential and preset driving force is applied to respectively each those pixel, thereby make each pixel present respectively corresponding GTG with display frame on bistable display.
But in now due to the known image element driving method that is applied to bistable display 10, because charged colored particles 17 is to intersperse among in insulation impregnant 16, and the glutinousness of insulation impregnant 16 can limit the translational speed of charged colored particles 17, therefore the existing known image element driving method display frame that is applied to bistable display 10 is slower, and particularly between its picture, switch speed is slower.
This shows, the image element driving method of above-mentioned existing bistable display obviously still has inconvenience and defective, and demands urgently further being improved in method and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, completed by development but have no for a long time applicable design always, and conventional method does not have appropriate method to address the above problem, this is obviously the problem that the anxious wish of relevant dealer solves.Therefore how to found a kind of image element driving method of new bistable display, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The object of the invention is to, overcome the defective of the image element driving method existence of existing bistable display, and provide a kind of image element driving method of new bistable display, technical matters to be solved is to make it can effectively promote the Picture switch speed of bistable display, is very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.The image element driving method of a kind of bistable display that proposes according to the present invention, it is applicable to drive a bistable state display that comprises a plurality of pixels, this bistable display drives those pixels according to a table-drive, this table-drive defines under various situations in order to drive the corresponding a plurality of motivation values of one of those pixels, each motivation value corresponds to respectively a preset driving force, and this preset driving force is to provide to the data current potential of those pixels and the pressure reduction between common electric potential; The image element driving method of this bistable display comprises the following steps: in a Preset Time section, corresponding this preset driving force of specific motivation value of those motivation values is increased be one to increase driving force, wherein this Preset Time section during this bistable display is by one first Picture switch to the second picture in; In this Preset Time section, drive the pixel that is originally driven by this specific motivation value with this increase driving force, thereby accelerate the switch speed of the GTG conversion of each pixel, accelerate the Picture switch speed of bistable display; And outside this Preset Time section, according to each motivation value respectively corresponding preset driving force drive those pixels.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The image element driving method of aforesaid bistable display, wherein said in this Preset Time section, corresponding this preset driving force of specific motivation value of those motivation values is increased be one to increase the step of driving force, comprises: changing provides to the data current potential of those pixels so that the voltage at those pixels two ends becomes large.
The image element driving method of aforesaid bistable display, wherein said in this Preset Time section, corresponding this preset driving force of specific motivation value of those motivation values is increased be one to increase the step of driving force, comprise: when in same picture in order to the increase amplitude of a plurality of increase driving forces of driving those pixels each other in the same way the time, changing provides to the common electric potential of those pixels so that the voltage at those pixels two ends becomes large.
The image element driving method of aforesaid bistable display wherein all is similarly negative sense in order to those increase amplitudes that increase driving force that drive those pixels and increases.
The image element driving method of aforesaid bistable display wherein all is similarly forward in order to those increase amplitudes that increase driving force that drive those pixels and increases.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, the image element driving method of bistable display of the present invention has following advantages and beneficial effect at least: the image element driving method of bistable display of the present invention is when driving each pixel, increase the driving force that drives each pixel, thereby accelerate the switch speed of the GTG conversion of each pixel, accelerate the Picture switch speed of bistable display.
In sum, the invention relates to a kind of image element driving method of bistable display, it is applicable to drive the bistable display that comprises a plurality of pixels.The image element driving method of above-mentioned bistable display comprises: in a Preset Time section, the predetermined preset driving force that drives these pixels is increased as increasing driving force; In the Preset Time section, drive respectively these pixels with the increase driving force; And outside the Preset Time section, drive respectively these pixels according to the predetermined preset driving force that drives these pixels.The present invention has significant progress technically, has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is a kind of diagrammatic cross-section of bistable display.
Fig. 2 is the process flow diagram of the image element driving method of a kind of bistable display of disclosing of preferred embodiment of the present invention.
10: bistable display 11,12: substrate
13: electrophoretic layer 14: microcapsules
16: insulation impregnant 17: charged colored particles
110-130: the step of the image element driving method of bistable display
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of image element driving method, method, step, feature and the effect thereof of the bistable display that foundation the present invention is proposed are described in detail as follows.
Relevant aforementioned and other technology contents of the present invention, Characteristic can be known to present in the following detailed description that coordinates with reference to graphic preferred embodiment.By the explanation of embodiment, when can be to reach technological means and the effect that predetermined purpose takes to obtain one more deeply and concrete understanding to the present invention, yet appended graphic only be to provide with reference to the use of explanation, the present invention is limited.
Seeing also shown in Figure 2ly, is the process flow diagram of the image element driving method of a kind of bistable display of disclosing of preferred embodiment of the present invention.The bistable display of preferred embodiment of the present invention can be electrophoresis type display, the microcapsules electrophoresis type display 10 with a plurality of pixels as shown in Figure 1, and wherein bistable display 10 drives each pixel of bistable display 10 according to predetermined table-drive.Above-mentioned predetermined table-drive has defined under various situations in order to driving the corresponding a plurality of motivation values of each pixel, and each motivation value corresponds respectively to a preset driving force.
The image element driving method of the bistable display of preferred embodiment of the present invention comprises the following steps.At first, to be increased be to increase driving force for execution in step 110, the corresponding preset driving force of motivation value make default table-drive in a Preset Time section in.Then, execution in step 120 drives with the increase driving force these pixels that originally driven by preset driving force in the Preset Time section.Then, execution in step 130, outside the Preset Time section, according to each motivation value respectively corresponding preset driving force drive these pixels.
Particularly, when bistable display 10 needs to show a picture, particularly when bistable display 10 need to be from the first Picture switch to the second picture, each pixel of bistable display 10 need to be switched to the second GTG corresponding to the second picture from the first GTG corresponding to the first picture.At this moment, bistable display 10 finds out the needed motivation value of each pixel from default table-drive, thereby finds out the needed corresponding preset driving force of each pixel.This preset driving force refers to be applied to the pressure reduction of presetting between the default common electric potential of default data current potential and common electrode of pixel electrode of each pixel.In preferred embodiment of the present invention, the best that the default common electric potential on the common electrode of each pixel of bistable display 10 is the manufacturer of bistable display 10 to be provided is set current potential, for example-1.xV; And the default data current potential on the pixel electrode of each pixel of bistable display 10 is one by one corresponding to its corresponding preset driving force.For example, if when a pixel of bistable display 10 was switched from the first GTG to the second GTG, its preset driving force was+15V that the default data current potential on the pixel electrode of this pixel is+15V.
Obtain to increase driving force in order to increase preset driving force in above-mentioned schedule time section, can be by the default data current potential that changes each pixel, perhaps can be by the default common electric potential that changes each pixel, thus increase the preset driving force of each pixel.For example, when if a pixel of bistable display 10 is changed from the first GTG to the second GTG, its preset driving force is+15V, the common electric potential of keeping this pixel for best set current potential-1.xV in, the data current potential of this pixel is increased to+20V to be to increase the corresponding preset driving force of this pixel.Certainly, the driving method of preferred embodiment of the present invention also can be changed into the common electric potential of this pixel-5V at the data current potential of keeping this pixel in+15V, thereby increases the pressure reduction at this pixel two ends, to obtain to increase driving force.
due to the common electrode of each pixel of bistable display 10 be generally electric property coupling together, thereby receive simultaneously identical common electric potential, therefore, it will be understood by those skilled in the art that, preferred embodiment of the present invention is when increasing the preset driving force of each pixel by the default common electric potential that changes each pixel, the increase amplitude that drives the increase driving force of each pixel in above-mentioned Preset Time section should be each other in the same way, for example all be similarly the negative sense increase or all be similarly forward and increase, thereby caused the preset driving force of some pixel to increase when avoiding changing the common electric potential on the common electrode of each pixel, and the phenomenon that the preset driving force of other pixels reduces on the contrary.
In sum, the image element driving method of the bistable display of preferred embodiment of the present invention be in each pixel of bistable display from the process that the first GTG corresponding to the first picture switches to the second GTG corresponding to the second picture, in a certain schedule time section, increase predetermined driving force to increasing driving force and drive each pixel by increasing driving force in schedule time section.Because the driving force of above-mentioned increase driving force is stronger, therefore above-mentioned increase driving force can be accelerated the switch speed of each pixel from the first GTG to the second GTG conversion.Then driving each pixel with predetermined driving force can make each pixel stably show the second GTG.Therefore the image element driving method of the bistable display of preferred embodiment of the present invention can accelerate the switch speed of the GTG conversion of each pixel, thereby accelerates the Picture switch speed of bistable display.
the above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. the image element driving method of a bistable display, it is characterized in that it is applicable to drive a bistable state display that comprises a plurality of pixels, this bistable display drives those pixels according to a table-drive, this table-drive defines under various situations in order to drive the corresponding a plurality of motivation values of one of those pixels, each motivation value corresponds to respectively a preset driving force, and this preset driving force is to provide to the data current potential of those pixels and the pressure reduction between common electric potential; The image element driving method of this bistable display comprises the following steps:
In a Preset Time section, corresponding this preset driving force of specific motivation value of those motivation values is increased be one to increase driving force, wherein this Preset Time section during this bistable display is by one first Picture switch to the second picture in;
In this Preset Time section, drive the pixel that is originally driven by this specific motivation value with this increase driving force, thereby accelerate the switch speed of the GTG conversion of each pixel, accelerate the Picture switch speed of bistable display; And
Outside this Preset Time section, according to each motivation value respectively corresponding preset driving force drive those pixels.
2. the image element driving method of bistable display according to claim 1, it is characterized in that wherein said in this Preset Time section, corresponding this preset driving force of specific motivation value of those motivation values is increased be one to increase the step of driving force, comprises:
Changing provides to the data current potential of those pixels so that the voltage at those pixels two ends becomes large.
3. the image element driving method of bistable display according to claim 1, it is characterized in that wherein said in this Preset Time section, corresponding this preset driving force of specific motivation value of those motivation values is increased be one to increase the step of driving force, comprises:
When in same picture in order to the increase amplitude of a plurality of increase driving forces of driving those pixels each other in the same way the time, changing provides to the common electric potential of those pixels so that the voltage at those pixels two ends becomes large.
4. the image element driving method of bistable display according to claim 3, is characterized in that wherein all being similarly negative sense in order to those increase amplitudes that increase driving force that drive those pixels increases.
5. the image element driving method of bistable display according to claim 3, is characterized in that wherein all being similarly forward in order to those increase amplitudes that increase driving force that drive those pixels increases.
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| CN 201010149631 CN102214426B (en) | 2010-04-07 | 2010-04-07 | Pixel driving method of bistable display |
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| CN 201010149631 CN102214426B (en) | 2010-04-07 | 2010-04-07 | Pixel driving method of bistable display |
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| CN1653383A (en) * | 2002-05-06 | 2005-08-10 | 皇家飞利浦电子股份有限公司 | Electrophoretic display device |
| CN1742313A (en) * | 2003-01-23 | 2006-03-01 | 皇家飞利浦电子股份有限公司 | Driving an electrophoretic display |
| CN101063785A (en) * | 2006-04-25 | 2007-10-31 | 精工爱普生株式会社 | Electrophoresis display device, method of driving electrophoresis display device, and electronic apparatus |
| CN101493627A (en) * | 2008-01-25 | 2009-07-29 | 精工爱普生株式会社 | Electrophoretic display device, method of driving the same, and electronic apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0385087A (en) * | 1989-08-29 | 1991-04-10 | Nec Corp | Series call system utilizing incoming subaddress |
| JP3991367B2 (en) * | 1995-12-28 | 2007-10-17 | セイコーエプソン株式会社 | Electrophoresis device |
| WO2004066255A1 (en) * | 2003-01-24 | 2004-08-05 | Koninklijke Philips Electronics N.V. | An electrophoretic display |
| KR100708683B1 (en) * | 2005-05-07 | 2007-04-17 | 삼성에스디아이 주식회사 | Flat panel display |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1653383A (en) * | 2002-05-06 | 2005-08-10 | 皇家飞利浦电子股份有限公司 | Electrophoretic display device |
| CN1742313A (en) * | 2003-01-23 | 2006-03-01 | 皇家飞利浦电子股份有限公司 | Driving an electrophoretic display |
| CN101063785A (en) * | 2006-04-25 | 2007-10-31 | 精工爱普生株式会社 | Electrophoresis display device, method of driving electrophoresis display device, and electronic apparatus |
| CN101493627A (en) * | 2008-01-25 | 2009-07-29 | 精工爱普生株式会社 | Electrophoretic display device, method of driving the same, and electronic apparatus |
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