CN101782706B - Manufacturing method of electrophoresis display - Google Patents
Manufacturing method of electrophoresis display Download PDFInfo
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- CN101782706B CN101782706B CN2009100005432A CN200910000543A CN101782706B CN 101782706 B CN101782706 B CN 101782706B CN 2009100005432 A CN2009100005432 A CN 2009100005432A CN 200910000543 A CN200910000543 A CN 200910000543A CN 101782706 B CN101782706 B CN 101782706B
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Abstract
The invention relates to a manufacturing method of an electrophoresis display. The method comprises the following steps of: putting a first electrode substrate and a second electrode substrate positioned above the first electrode substrate into an electrophoretic buffer, wherein the first electrode substrate comprises a substrate and a plurality of pixel electrodes configured on the substrate; putting formed electrified microcapsules into the electrophoretic buffer, and then enabling the electrical property of a part of pixel electrodes to be opposite to the electrical property of the electrified microcapsules so that the electrified microcapsules are adsorbed above the pixel electrodes. The electrified microcapsules are directly configured on the pixel electrodes, and the colors of colorful charged particles of the electrified microcapsules which correspond to the pixel electrodes are same, therefore, the electrophoresis display prepared with the method not only has high reflectivity and penetration rate, but also can display a picture with single primary color.
Description
Technical field
The present invention relates to a kind of manufacturing approach of display, particularly relate to a kind of manufacturing approach of electrophoretic display device (EPD).
Background technology
Because flexible display (flexible display) not only has the advantage of in light weight and thin thickness, the advantage that also has deflection and cannot not fall brokenly, so the manufacturing of flexible display has become important development trend.At present common flexible display is that (electro-phoretic display, EPD), it is a kind ofly to control charged particle distribution kenel by electric field to electrophoretic display device (EPD), and then changes the reflectivity of viewing area to surround lighting, to produce the display of display effect.Based on its displaying principle, electrophoretic display device (EPD) has the characteristics of bistable state (bistability) and illuminating source that need not be extra, thereby meets modern technologies need possess high electricity-saving characteristic simultaneously to flexible display requirement.
Fig. 1 is the diagrammatic cross-section of existing convention electrophoresis layer, and Fig. 2 is the cut-away section synoptic diagram of existing convention electrophoretic display device (EPD).See also Fig. 1 and shown in Figure 2; With present electrophoretic display device (EPD) manufacturing process; In the method that forms electrophoresis layer on the active elements array substrates 200 is earlier a plurality of Electronphoretic display units 110 (like microcapsules electrophoresis or little cup type electrophoresis) to be fixed between transparency carrier 120 and the transparency carrier 130; To form an electrophoretic foil 100, then again electrophoretic foil 100 entirely is attached on the active elements array substrates 200.Yet the transparency carrier 120 in the electrophoretic foil 100 tends to cause the reflectivity of electrophoretic display device (EPD) and light transmittance to descend with transparency carrier 130.
In addition, for taking into account brightness and colorize simultaneously, each manufacturer color ribbon charged in utilizing Electronphoretic display unit 110 invariably comes the direction of display color picture to research and develop.Yet; Because the arrangement pitches of the arrangement pitches of the Electronphoretic display unit 110 in the electrophoretic foil 100 and the pixel electrode 210 of active elements array substrates 200 is also inequality, the electrophoretic display device (EPD) of therefore existing convention can't provide driving voltage to the Electronphoretic display unit 110 of particular color.
With Fig. 2; Correspond to same pixel electrode 210 if having the part of the Electronphoretic display unit 110 of red zone charged 112r with a part with Electronphoretic display unit 110 of green charged particle 112g; Then apply picture color that driving voltage shown and can present red and green and colour mixture thereof when this pixel electrode 210, but not be merely redness or green.Hence one can see that, and the picture color expression effect of existing convention electrophoretic display device (EPD) is unsatisfactory.
This shows that the manufacturing approach of above-mentioned existing electrophoretic display device (EPD) obviously still has inconvenience and defective, and demands urgently further improving in manufacturing approach 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; But do not see always that for a long time suitable design is developed completion, and general manufacturing approach does not have appropriate method to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of manufacturing approach of new electrophoretic display device (EPD), 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 objective of the invention is to; Overcome the defective of the manufacturing approach existence of existing electrophoretic display device (EPD); And a kind of manufacturing approach of new electrophoretic display device (EPD) is provided, technical matters to be solved is to make it produce the electrophoretic display device (EPD) that can show the picture with single particular color, is very suitable for practicality.
The object of the invention and solve its technical matters and adopt following technical scheme to realize.The manufacturing approach of a kind of electrophoretic display device (EPD) that proposes according to the present invention, it may further comprise the steps: an electrophoresis liquid is provided; One first electrode base board and one second electrode base board are placed in this electrophoresis liquid; Wherein this second electrode base board is positioned at this first electrode base board top; And this first electrode base board comprises a substrate and a plurality of pixel electrode, and those pixel electrodes are to be disposed on this substrate; Form at least one charged microcapsules; Should be placed between this first electrode base board and this second electrode base board by at least one charged microcapsules; And make those pixel electrodes electrically electrically opposite with this at least one charged microcapsules of one of them at least, and should be adsorbed to above this at least one pixel electrode by at least one charged microcapsules.Wherein, the step that forms these at least one charged microcapsules comprises: at least one microcapsules and a plurality of electric charge are provided; And make those electric charges be attached on these at least one microcapsules, to form these at least one charged microcapsules
The object of the invention and solve its technical matters and also can adopt following technical measures further to realize.
The manufacturing approach of aforesaid electrophoretic display device (EPD); Wherein make those pixel electrodes at least one of them electrically with this at least one charged microcapsules electrically opposite after, more comprise the electrically identical of electrical and these at least one charged microcapsules of making remaining those pixel electrode.
The manufacturing approach of aforesaid electrophoretic display device (EPD); Wherein these at least one charged microcapsules comprise a plurality of charged microcapsules; And make those pixel electrodes at least one of them electrically with this at least one charged microcapsules electrically opposite after, more comprise removing those charged microcapsules that are not adsorbed to above this at least one pixel electrode.
The manufacturing approach of aforesaid electrophoretic display device (EPD), the method that wherein removes those charged microcapsules that are not adsorbed to this at least one pixel electrode top comprises topples over or the centrifugal method that removes.
The manufacturing approach of aforesaid electrophoretic display device (EPD), wherein respectively these charged microcapsules have a plurality of color ribbon charged respectively, and the color of those color ribbon charged is identical.
The manufacturing approach of aforesaid electrophoretic display device (EPD) wherein makes those pixel electrodes apply extremely this at least one pixel electrode of an alternating voltage or a direct current voltage electrically comprising with the electrical opposite methods of this at least one charged microcapsules of one of them at least.
The manufacturing approach of aforesaid electrophoretic display device (EPD) wherein after should at least one charged microcapsules being adsorbed to above this at least one pixel electrode, more comprising and removes this alternating voltage or this DC voltage that is applied to this at least one pixel electrode.
The manufacturing approach of aforesaid electrophoretic display device (EPD), the method that wherein makes those electric charges be attached on these at least one microcapsules comprises absorption method or copolymerization process.
The manufacturing approach of aforesaid electrophoretic display device (EPD), more comprise make this second electrode base board electrically and this at least one charged microcapsules electrically identical.
The manufacturing approach of aforesaid electrophoretic display device (EPD), wherein make this second electrode base board electrically and the electrical identical method of these at least one charged microcapsules comprise and apply alternating voltage or DC voltage to this second electrode base board.
The manufacturing approach of aforesaid electrophoretic display device (EPD); Wherein these at least one charged microcapsules comprise at least one first charged microcapsules and at least one second charged microcapsules; And have a plurality of first color ribbon charged in these at least one first charged microcapsules; Have a plurality of second color ribbon charged in these at least one second charged microcapsules, and make those pixel electrodes electrically comprising of one of them at least: make those pixel electrodes electrically on the contrary electrical with these at least one first charged microcapsules of one of them at least with the electrical opposite steps of this at least one charged microcapsules; And make those pixel electrodes at least wherein another electrically with this at least one second charged microcapsules electrically not on the contrary.
The manufacturing approach of aforesaid electrophoretic display device (EPD) wherein before this first electrode base board is inserted this electrophoresis liquid, more is included in and forms a restraining barrier on this first electrode base board, wherein is separated with this restraining barrier between each this adjacent pixel electrode.
The manufacturing approach of aforesaid electrophoretic display device (EPD), wherein first electrode base board also comprises sweep trace and data line, this sweep trace and data line in the relative height on the substrate greater than the relative height of pixel electrode on substrate.
The present invention compared with prior art has tangible advantage and beneficial effect.Know by above; For achieving the above object; The invention provides a kind of manufacturing approach of electrophoretic display device (EPD), it is that an electrophoresis liquid is provided earlier, and first electrode base board and second electrode base board that then will be opposed to are each other inserted in the electrophoresis liquid; Wherein second electrode base board is positioned at first electrode base board top, and first electrode base board comprises substrate and is configured in a plurality of pixel electrodes on the substrate.Then, form at least one charged microcapsules, and charged microcapsules are placed between this first electrode base board and this second electrode base board.Afterwards, make electrically electrically opposite with charged microcapsules of at least one pixel electrode, so that charged microcapsules are adsorbed to the pixel electrode top.
In one embodiment of this invention, wherein make pixel electrode electrically with charged microcapsules electrically opposite after, more comprise make remaining pixel electrode electrically and charged microcapsules electrically identical.
In one embodiment of this invention; The manufacturing approach of above-mentioned electrophoretic display device (EPD) is that a plurality of charged microcapsules are inserted in the electrophoresis liquid; And make pixel electrode electrically with charged microcapsules electrically opposite after; More comprise removing the charged microcapsules that are not adsorbed to pixel electrode top, and it for example is by toppling over or the centrifugal mode that removes method removes.
In one embodiment of this invention, above-mentioned each charged microcapsules have a plurality of color ribbon charged respectively, and the color of these charged particles is identical.
In one embodiment of this invention, wherein make pixel electrode electrically and the electrical identical method of charged microcapsules comprise and apply an alternating voltage or a direct current voltage to pixel electrode.And, after charged microcapsules being adsorbed to above the pixel electrode, can also remove the alternating voltage or the DC voltage that are applied to pixel electrode.
In one embodiment of this invention, the step that forms above-mentioned charged microcapsules for example is that at least one microcapsules and a plurality of electric charge are provided earlier, and then makes these electric charges be attached on the microcapsules, to form above-mentioned charged microcapsules.Wherein, the method that makes these electric charges be attached on the microcapsules comprises copolymerization process or absorption method.
In one embodiment of this invention, the manufacturing approach of above-mentioned electrophoretic display device (EPD) more comprise make second electrode base board electrically and charged microcapsules electrically identical, and its method carried out therewith for example is through applying alternating voltage or DC voltage to this second electrode base board.
In one embodiment of this invention; Above-mentioned charged microcapsules comprise at least one first charged microcapsules and at least one second charged microcapsules; Wherein have a plurality of first color ribbon charged in the first charged microcapsules, then have a plurality of second color ribbon charged in the second charged microcapsules.And what make pixel electrode electrically comprises electrically electrically opposite with the first charged microcapsules that makes at least one pixel electrode with the electrical opposite steps of charged microcapsules, and order at least another pixel electrode electrically with the second charged microcapsules electrically not on the contrary.
In one embodiment of this invention, the manufacturing approach of above-mentioned electrophoretic display device (EPD) more was included in and forms a restraining barrier on first electrode base board, and promptly be separated with the restraining barrier between the adjacent pixel electrodes before first electrode base board is inserted electrophoresis liquid.
By technique scheme; The manufacturing approach of electrophoretic display device (EPD) of the present invention has advantage and beneficial effect at least: the present invention is the microcapsules that polarization earlier has the color ribbon charged; So that it becomes non-electroneutral charged microcapsules; And then adsorb charged microcapsules on the pixel electrode by applying voltages to, to accomplish the location of charged microcapsules.Hence one can see that, and the present invention can directly dispose charged microcapsules on first electrode base board, and the color ribbon charged color that charged microcapsules had that each pixel electrode corresponded to is identical.Therefore, the made electrophoretic display device (EPD) of the present invention not only has high reflectance and penetrance, more can show the picture of single primary colors, and thereby has a good picture color expression effect.
In sum; The invention relates to a kind of manufacturing approach of electrophoretic display device (EPD); The method is earlier first electrode base board and second electrode base board that is arranged in first electrode base board top to be inserted electrophoresis liquid, and wherein first electrode base board comprises substrate and is configured in a plurality of pixel electrodes on the substrate.Then, formed charged microcapsules are inserted in the electrophoresis liquid, electrically electrically opposite with charged microcapsules of the pixel electrode of order part again is to be adsorbed to charged microcapsules the pixel electrode top.Because charged microcapsules are directly to be disposed on the pixel electrode, and the color ribbon charged color that charged microcapsules had of each pixel electrode correspondence is identical.Therefore, utilize the made electrophoretic display device (EPD) of said method not only to have high reflectance and penetrance, more can show the picture of single primary colors.The present invention has obvious improvement technically, has tangible good effect, really is the new design of a novelty, progress, practicality.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of instructions, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the diagrammatic cross-section of existing convention electrophoresis layer.
Fig. 2 is the cut-away section synoptic diagram of existing convention electrophoretic display device (EPD).
Fig. 3 A to Fig. 3 C is respectively the diagrammatic cross-section of electrophoretic display device (EPD) of the present invention in manufacturing process.
Fig. 4 is the synoptic diagram of first electrode base board in one embodiment of the invention.
Fig. 5 is the synoptic diagram that applies voltages in the another embodiment of the present invention on the pixel electrode.
Fig. 6 is the diagrammatic cross-section of first electrode base board in the another embodiment of the present invention.
Fig. 7 is the made electrophoretic display device (EPD) of manufacturing approach that utilizes electrophoretic display device (EPD) of the present invention.
Fig. 8 is the location synoptic diagram of charged microcapsules in the another embodiment of the present invention.
100: electrophoretic foil 110: Electronphoretic display unit
112r: red zone charged 112g: green charged particle
120,130: transparency carrier 200: active elements array substrates
210,314: 310: the first electrode base boards of pixel electrode
312,322: substrate 316D: data line
316S: sweep trace 318: thin film transistor (TFT)
330: electrophoresis liquid 340,840: charged microcapsules
340a: electric charge 340b: microcapsules
342,843,845: color ribbon charged 350: restraining barrier
700: 842: the first charged microcapsules of color electrophoretic display
844: the second charged microcapsules
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; To its embodiment of manufacturing approach, manufacturing approach, step, characteristic and the effect thereof of the electrophoretic display device (EPD) that proposes according to the present invention, specify as after.
Fig. 3 A to Fig. 3 C is respectively the diagrammatic cross-section of electrophoretic display device (EPD) of the present invention in manufacturing process.Please consult earlier shown in Fig. 3 A, electrophoresis liquid 330 at first is provided, and first electrode base board 310 and second electrode base board 320 are inserted in the electrophoresis liquid 330.Wherein, Second electrode base board 320 is to be positioned at first electrode base board, 310 tops; And first electrode base board 310 for example is to be made up of substrate 312 and configuration 314 of a plurality of pixel electrodes on it, and 320 of second electrode base boards are to be made up of substrate 322 and 324 of transparent electrode layers.In the present embodiment; The material of substrate 312 can be metal, glass or plastic cement; Like poly terephthalic acid diethylester (polyethylene terephthalate; PET), PEN (polyethylene naphthenate; PEN), gather aromatic poly amide (polyaramid), pi (polyimide, PI), gather cycloolefin (polycycloolefin), gather sulfonyl (polysulfone), epoxide (epoxy), polycarbonate (polycarbonate) and polymethylmethacrylate (polymethyl methacrylate, PMMA).The material of substrate 322 for example is light transmissive materials such as glass or above-mentioned plastic cement then, but not as limit.
Specifically, first electrode base board 310 can be active elements array substrates (active elements array substrate) or passive component array substrate (passive elements array substrate).In the present embodiment; First electrode base board 310 for example is thin-film transistor array base-plate (thin film transistors array substrate; TFTs array substrate); And on the substrate 312 except disposing pixel electrode 314, also comprise sweep trace 316S, data line 316D and thin film transistor (TFT) 318, as shown in Figure 4.
See also shown in Fig. 3 B, form at least one charged microcapsules 340, and it is inserted in the electrophoresis liquid 330, to be located between first electrode base board 310 and second electrode base board 320.In the present embodiment, it for example is that a plurality of charged microcapsules 340 are inserted in the electrophoresis liquid 330, and has a plurality of color ribbon charged 342 respectively in each charged microcapsules 340.For instance, the color ribbon charged 342 in each charged microcapsules 340 can comprise redness, green, blue one of them and black, or cyan (cyan), yellow, carmetta (magenta) one of them with white.
Specifically, in the present embodiment, inserted these the charged microcapsules 340 in the electrophoresis liquid 330 simultaneously, the color of the color ribbon charged 342 that it is inner is identical.That is to say that present embodiment is that charged microcapsules 340 gradation that color ribbon charged 342 colors that had are different are inserted in the electrophoresis liquid 330.
In detail, charged microcapsules 340 promptly are microcapsules (microcapsule) 340b that is attached with a plurality of electric charge 340a, and its formation method for example is attached on the microcapsules 340b with absorption method or these electric charges of copolymerization decree 340a.In the present embodiment, the diameter of microcapsules 340b for example is between 40 microns to 500 microns.
See also shown in Fig. 3 C, make first electrode base board 310 partial pixel electrode 314 electrically with place the electrically opposite of charged microcapsules 340 in the electrophoresis liquid 330 so that charged microcapsules 340 are adsorbed in the top of pixel electrode 314.That is to say; After a plurality of charged microcapsules 340 of the color ribbon charged 342 that will have same color are inserted in the electrophoresis liquid 330; It then promptly is the pixel electrode 314 of selecting part according to the predeterminated position of these charged microcapsules 340; And apply alternating voltage or DC voltage on selecteed pixel electrode 314, so that it has and charged microcapsules 340 opposite electric polarity.
With present embodiment; Because the electric charge 340a that is adsorbed on the microcapsules 340b is a negative charge; Therefore put on alternating voltage or DC voltage on the partial pixel electrode 314 and then be with so that pixel electrode 314 has positive charge, so that charged microcapsules 340 are adsorbed to pixel electrode 314 tops.
It should be noted that the present invention does not limit the quantity of the charged microcapsules 340 that are adsorbed to single pixel electrode 314 tops, it is that the plain electrode 314 of video is decided with the dimension scale of charged microcapsules 340.That is to say that in utilizing the made electrophoretic display device (EPD) of method of the present invention, each pixel electrode 314 can corresponding one or more charged microcapsules 340.
On the other hand, present embodiment more when making it have positive charge, applies the transparent electrode layer 324 on alternating voltage or DC voltage to the second electrode base board 320 applying alternating voltage or DC voltage to partial pixel electrode 314, and makes it have negative charge.Thus, charged microcapsules 340 will receive the repulsive force of the negative charge on the transparent electrode layer 324, thereby quicken to move toward the direction 314 of pixel electrode.
In addition; The present invention is in another embodiment more applying alternating voltage or DC voltage to partial pixel electrode 314 when making it have positive charge; Apply alternating voltage or DC voltage to remaining pixel electrode 314, and make it have negative charge, as shown in Figure 5.Thus, the charged microcapsules 340 that can avoid having negative charge are positioned at the top of unscheduled pixel electrode 314.
Please consult shown in Fig. 3 C once more; In order further to guarantee only have the top of predetermined pixel electrode 314 to dispose charged microcapsules 340; Present embodiment for example is after accomplishing the step shown in Fig. 3 C, removes the charged microcapsules 340 that are not adsorbed on pixel electrode 314 tops.For instance; It can be to pour out outside the electrophoresis liquid 330 with the charged microcapsules 340 that the mode of toppling over will not be adsorbed on pixel electrode 314 tops; Or using the centrifugal method that removes, the charged microcapsules 340 that just utilize hydro-extractor will not to be adsorbed on pixel electrode 314 tops throw away outside the electrophoresis liquid 330.
What deserves to be mentioned is; For making the charged microcapsules 340 that are adsorbed to pixel electrode 314 tops can be fixed in its whereabouts; The sweep trace 316S of present embodiment and data line 316D for example are greater than the relative height of pixel electrode 314 on substrate 312 in the relative height on the substrate 312, are adsorbed to the position of the charged microcapsules 340 of pixel electrode 314 tops with restriction.Thus, even drop back except that being applied to DC voltage or the alternating voltage on the pixel electrode 314, also be difficult for taking place the problem of charged microcapsules 340 displacements in the location of accomplishing charged microcapsules 340.
In addition, the present invention also can form restraining barrier 350 earlier in another embodiment on first electrode base board 310 before inserting first electrode base board in the electrophoresis liquid 330, as shown in Figure 6.Wherein, restraining barrier 350 for example is to be disposed on the data line 316D or sweep trace 316S of first electrode base board 310, so that adjacent pixel electrodes 314 is separated.Therefore, after the electric charge on the pixel electrode 314 is adsorbed to charged microcapsules 340 its top, the position that can limit charged microcapsules 340 by restraining barrier 350.
Can know by preamble; The foregoing description is the location of accomplishing a plurality of charged microcapsules simultaneously, and the color ribbon charged color that these charged microcapsules had is identical, therefore has the knack of this art and will be appreciated that; The charged microcapsules that will have the color ribbon charged of different colours are successively inserted in the electrophoresis liquid; And repeat the described flow of preamble, and promptly can be made into the color electrophoretic display 700 that can show single primary colors, as shown in Figure 7.
Specifically, the present invention can also insert the charged microcapsules of the color ribbon charged with different colours in the electrophoresis liquid simultaneously, below will lift embodiment and cooperate graphic explanation.
Fig. 8 is the location synoptic diagram of charged microcapsules in the another embodiment of the present invention.See also shown in Figure 8; In the present embodiment; The charged microcapsules 840 of inserting in the electrophoresis liquid 330 comprise the first charged microcapsules 842 and the second charged microcapsules 844; Wherein the electrical and second charged microcapsules 844 of the first charged microcapsules 842 is electrically opposite, and the color ribbon charged 843 of the first charged microcapsules, 842 inside is different with color ribbon charged 845 colors of the second charged microcapsules, 844 inside.
Hold the above, the first charged microcapsules 842 of present embodiment for example are to have negative charge, and second 844 of the charged microcapsules have positive charge.Therefore; Present embodiment is applying 314 last times of alternating voltage or DC voltage to pixel electrode; The pixel electrode 314 that is the order part has positive charge; So that the first charged microcapsules 842 are adsorbed to its top, and make 314 of the pixel electrodes of another part have negative charge, so that the second charged microcapsules 844 are adsorbed to its top.
Present embodiment is behind the location of accomplishing the first charged microcapsules 842 and the second charged microcapsules 844; Follow the also removable first charged microcapsules 842 or the second charged microcapsules 844 that are not adsorbed to pixel electrode 314 tops; And it is similar with previous embodiment that it removes method, repeats no more here.
In addition; Present embodiment is behind the location of accomplishing the first charged microcapsules 842 and the second charged microcapsules 844; Also can the continue location of the charged microcapsules of carrying out the color ribbon charged with another kind of color can show one of them color electrophoretic display of three primary colors separately to process.
In sum; In the manufacturing approach of electrophoretic display device (EPD) of the present invention, it is the microcapsules that polarization earlier has the color ribbon charged, so that it becomes non-electroneutral charged microcapsules; And then adsorb charged microcapsules on the pixel electrode by applying voltages to, to accomplish the location of charged microcapsules.Hence one can see that, and the present invention can directly dispose charged microcapsules on first electrode base board, and the color ribbon charged color that charged microcapsules had that each pixel electrode corresponded to is identical.Therefore, the made electrophoretic display device (EPD) of the present invention not only has high reflectance and penetrance, more can show the picture of single primary colors, and thereby has a good picture color expression effect.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (13)
1. the manufacturing approach of an electrophoretic display device (EPD) is characterized in that it may further comprise the steps:
One electrophoresis liquid is provided;
One first electrode base board and one second electrode base board are placed in this electrophoresis liquid; Wherein this second electrode base board is positioned at this first electrode base board top; And this first electrode base board comprises a substrate and a plurality of pixel electrode, and those pixel electrodes are to be disposed on this substrate;
Form at least one charged microcapsules;
Should be placed between this first electrode base board and this second electrode base board by at least one charged microcapsules; And
Make those pixel electrodes electrically electrically opposite with this at least one charged microcapsules of one of them at least, and should be adsorbed to above this at least one pixel electrode by at least one charged microcapsules;
The step that wherein forms these at least one charged microcapsules comprises:
At least one microcapsules and a plurality of electric charge are provided; And
Make those electric charges be attached on these at least one microcapsules, to form these at least one charged microcapsules.
2. the manufacturing approach of electrophoretic display device (EPD) according to claim 1; It is characterized in that; Wherein make those pixel electrodes at least one of them electrically with this at least one charged microcapsules electrically opposite after, more comprise the electrically identical of electrical and these at least one charged microcapsules of making remaining those pixel electrode.
3. the manufacturing approach of electrophoretic display device (EPD) according to claim 1; It is characterized in that; Wherein these at least one charged microcapsules comprise a plurality of charged microcapsules; And make those pixel electrodes at least one of them electrically with this at least one charged microcapsules electrically opposite after, more comprise removing those charged microcapsules that are not adsorbed to above this at least one pixel electrode.
4. the manufacturing approach of electrophoretic display device (EPD) according to claim 3 is characterized in that, the method that wherein removes those charged microcapsules that are not adsorbed to this at least one pixel electrode top comprises topples over or the centrifugal method that removes.
5. the manufacturing approach of electrophoretic display device (EPD) according to claim 3 is characterized in that, wherein respectively these charged microcapsules have a plurality of color ribbon charged respectively, and the color of those color ribbon charged is identical.
6. the manufacturing approach of electrophoretic display device (EPD) according to claim 1; It is characterized in that, wherein make those pixel electrodes apply extremely this at least one pixel electrode of an alternating voltage or a direct current voltage electrically comprising of one of them at least with the electrical opposite methods of this at least one charged microcapsules.
7. the manufacturing approach of electrophoretic display device (EPD) according to claim 6; It is characterized in that; Wherein after should at least one charged microcapsules being adsorbed to above this at least one pixel electrode, more comprising and remove this alternating voltage or this DC voltage that is applied to this at least one pixel electrode.
8. the manufacturing approach of electrophoretic display device (EPD) according to claim 1 is characterized in that, the method that wherein makes those electric charges be attached on these at least one microcapsules comprises absorption method or copolymerization process.
9. the manufacturing approach of electrophoretic display device (EPD) according to claim 1 is characterized in that, more comprise make this second electrode base board electrically and this at least one charged microcapsules electrically identical.
10. the manufacturing approach of electrophoretic display device (EPD) according to claim 9; It is characterized in that, wherein make this second electrode base board electrically and the electrical identical method of these at least one charged microcapsules comprise and apply alternating voltage or DC voltage to this second electrode base board.
11. the manufacturing approach of electrophoretic display device (EPD) according to claim 1; It is characterized in that; Wherein these at least one charged microcapsules comprise at least one first charged microcapsules and at least one second charged microcapsules; And have a plurality of first color ribbon charged in these at least one first charged microcapsules; Have a plurality of second color ribbon charged in these at least one second charged microcapsules, and make those pixel electrodes electrically comprising of one of them at least with the electrical opposite steps of these at least one charged microcapsules:
Make those pixel electrodes at least one of them electrically with this at least one first charged microcapsules electrically not on the contrary; And
Make those pixel electrodes at least wherein another electrically with this at least one second charged microcapsules electrically not on the contrary.
12. the manufacturing approach of electrophoretic display device (EPD) according to claim 1; It is characterized in that; Wherein before this first electrode base board is inserted this electrophoresis liquid, more be included in and form a restraining barrier on this first electrode base board, wherein be separated with this restraining barrier between each this adjacent pixel electrode.
13. the manufacturing approach of electrophoretic display device (EPD) according to claim 1 is characterized in that, this first electrode base board also comprises sweep trace and data line, this sweep trace and data line in the relative height on the substrate greater than the relative height of pixel electrode on substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100005432A CN101782706B (en) | 2009-01-15 | 2009-01-15 | Manufacturing method of electrophoresis display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100005432A CN101782706B (en) | 2009-01-15 | 2009-01-15 | Manufacturing method of electrophoresis display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101782706A CN101782706A (en) | 2010-07-21 |
| CN101782706B true CN101782706B (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100005432A Expired - Fee Related CN101782706B (en) | 2009-01-15 | 2009-01-15 | Manufacturing method of electrophoresis display |
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| CN (1) | CN101782706B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707532B (en) * | 2011-05-13 | 2015-07-15 | 京东方科技集团股份有限公司 | Display |
| CN112002792B (en) * | 2020-07-06 | 2022-02-22 | 深圳市隆利科技股份有限公司 | Method for preparing LED display by electrophoretic assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445596A (en) * | 2002-03-14 | 2003-10-01 | 株式会社半导体能源研究所 | Display device and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445596A (en) * | 2002-03-14 | 2003-10-01 | 株式会社半导体能源研究所 | Display device and manufacturing method thereof |
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| CN101782706A (en) | 2010-07-21 |
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