CN102654707A - Electrowetting display device and display method - Google Patents
Electrowetting display device and display method Download PDFInfo
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- CN102654707A CN102654707A CN2011101526523A CN201110152652A CN102654707A CN 102654707 A CN102654707 A CN 102654707A CN 2011101526523 A CN2011101526523 A CN 2011101526523A CN 201110152652 A CN201110152652 A CN 201110152652A CN 102654707 A CN102654707 A CN 102654707A
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Abstract
The invention relates to the technical field of electrowetting display and discloses an electrowetting display device. The electrowetting display device comprises a printing ink containing cavity, wherein the cavity is filled with printing inks in different colours, the printing inks in different colours are not mutually dissolved and are not dissolved in salt solution around the printing inks. The invention also discloses a method for carrying out single-colour or double-colour display by utilizing the electrowetting display device. The invention has the following beneficial effects: the cavity filled with the printing inks is designed into a hollow body which can be filled with the printing inks in multiple colours, and then different colours are controlled to be displayed by applying an electrode to the cavity, thus multiple colours are displayed, and colour mixing is not caused, so that the aim of full-colour display is well realized; and besides, a communicating pipeline is arranged between an upper cavity and a lower cavity, thus response time required for changing display colour is saved.
Description
Technical field
The present invention relates to electric wetting display technique field, particularly a kind of electric moisten display device and display packing.
Background technology
It is a kind of emerging in recent years display technique that electricity wetting (Electrowettin) shows.The wetting display technique of electricity briefly is exactly to control the top layer of besieged liquid by control voltage, thereby causes the variation of pixel.As shown in Figure 1, (a) and (b) are pixel outboard profiles of existing electric moisten display device; (c), (d) is the vertical view of pel array; (a), (c) is the dark attitude during making alive not; (b), (d) bright attitude when being making alive.
To its principle explanation as follows:
As shown in Figure 1, when not applying voltage, the outer interlayer of electrode of coloured liquid and waterproof and insulation forms one deck flat membrane, is exactly a coloured pixel.When between electrode and liquid, applying voltage, the tension force of the outer surface of contact of liquid and electrode can produce change, and the result is that its original static condition attitude is no longer stable, makes liquid move to the next door, causes a pixel that part is transparent.
The electricity wetting phenomena is exactly that electrolyte solution changes with the contact angle of its time insulation course under electric field action, and just electrolyte solution is realized the phenomenon that contracts or open up under electric field action.The wetting display technique of electricity is exactly to utilize the principle of electric wetting phenomena, launches or shrink to show through electrode control printing ink.Printing ink can have two effects: the effect of blocking (generally be used for white and black displays, printing ink shading or screening look are generally black more); Demonstration effect (generally be used for colored demonstration, self has color printing ink).In simple terms, be exactly the motion of electrode control printing ink, thereby realize showing.
The wetting display technique of electricity has bistable state with it and shows that reflectivity is good, and is low in energy consumption, and the characteristics of the response speed that temperature range is wide and enough fast more and more receive people's favor.The wetting display technique of electricity still is in the starting stage at present, but its superior function that shows and development potentiality are indicating that all in following display technique field, electric wetting demonstration will occupy one seat, becomes a kind of important display packing.
Although electric wetting display technique has a lot of advantages, still can not reach and let the well-content colored display effect of people.
Summary of the invention
The technical matters that (one) will solve
The technical matters that the present invention will solve one of is: how to realize that full color shows; Two are the response times that how to reduce turn colors.
(2) summary of the invention
In order to solve the problems of the technologies described above, the invention provides electric moisten display device, comprise the ccontaining cavity of printing ink; Be filled with the printing ink of different colours in the ccontaining cavity of said printing ink; The printing ink objectionable intermingling of different colours, and all be insoluble to solution, said solution for example is salt solusion.
Preferably, the ccontaining cavity of said printing ink is made up of shell and the inner casing that is embedded in the shell, and said shell and inner casing are enclosed construction, in the cavity that said printing ink forms between shell and inner casing.
Preferably; The shape of said shell and inner casing is rectangular parallelepiped; The ccontaining cavity of said printing ink this moment is divided into six cavitys of up, down, left, right, before and after; Said six cavitys are filled with the printing ink of different colours respectively, the corresponding electrode of controlling it of each printing ink, and promptly each electrode is covered in corresponding cavity.
Preferably, be provided with the pipeline that is communicated with upper and lower cavity between the upper and lower cavity of the ccontaining cavity of said printing ink.
Preferably, be filled with the printing ink of different colours in the going up of the ccontaining cavity of only said printing ink, five cavitys in left, right, front and rear respectively.
Preferably, be filled with the printing ink of different colours among any two or any four in six cavitys of up, down, left, right, before and after of the ccontaining cavity of only said printing ink respectively.
Preferably, said printing ink is hydrocarbon system row machine oil.
Preferably, said device also comprises electrode.
The present invention also provides a kind of and has utilized described device to show monochromatic method, puts on the voltage of said electrode through control, makes the printing ink of particular color get into upper plenum to show monochrome.
The present invention also provides another kind of and has utilized described device to show double-colored method, puts on the voltage of said electrode through control, and it is double-colored to show to make the printing ink of specific two kinds of colors get into upper plenum.
(3) beneficial effect
The present invention can produce following beneficial effect: through the cavity design that will fill printing ink is the hollow body that can fill multiple different colours printing ink; Then it is applied the demonstration that voltage is controlled different colours; Thereby realize that multiple color shows; And colour mixture not, thereby realize the purpose that full color shows well; Further, through between upper and lower cavity, connecting pipe being set, saved the required response time of conversion Show Color.
Description of drawings
Fig. 1 is the wetting displaying principle synoptic diagram of existing electricity;
Fig. 2 is the side view of the display device of the embodiment of the invention one when filling printing ink;
Fig. 3 is the side view of the display device of the embodiment of the invention one when not filling printing ink;
Fig. 4 is the top view of the display device of the embodiment of the invention one when not filling printing ink;
Fig. 5 is the side view of the display device of the embodiment of the invention two when not filling printing ink.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
The present invention can make a pixel show multiple color, and colour mixture not, thereby well realizes the purpose that full color shows.
Embodiment one
As shown in Figure 2, the display device of present embodiment comprises the ccontaining cavity of printing ink, is filled with the printing ink of different colours in the ccontaining cavity of printing ink, the printing ink objectionable intermingling of different colours, and all be insoluble to solution.The ccontaining cavity of said printing ink is made up of shell and the inner casing that is embedded in the shell, and said shell and inner casing are enclosed construction, in the cavity that said printing ink forms between shell and inner casing.The shape of said shell and inner casing is rectangular parallelepiped, and the ccontaining cavity of said printing ink this moment is divided into six cavitys of up, down, left, right, before and after, and said six cavitys are filled with the printing ink of different colours respectively.
Six cavitys of the up, down, left, right, before and after of the ccontaining cavity of printing ink are used to fill the printing ink (wherein upper plenum is the display layer of this display device) of different colours, thereby can make a pixel show six kinds of colors, and are for example red, yellow, blue, green, white, black.Incompatible between the printing ink of six kinds of different colours; And all being insoluble to solution, for example can adopting hydrocarbon system row machine oil as printing ink, is example with HFC-134a and CFC-12; Both are unmixing both; Also water insoluble, add the printing ink that different colorant (like dyestuff) just forms different colours again, simultaneously also water insoluble.Can also adopt pigment granule or nano particle but not dyestuff as colorant.
Displaying principle is described below.
When wanting exhibit red, through regulating the voltage of electrode, make red ink get into upper plenum, this pixel exhibit red, the ink colors of supposing left cavity this moment is for green, and the ink colors of right cavity is yellow, and the ink colors of following cavity is blue.In the time will showing yellow, principle is similar, and control puts on the voltage of electrode; Make Yellow ink get into upper plenum; Corresponding red ink is extruded to the position of green ink, and green ink is extruded to the position of blue ink, and blue ink is extruded to the position of Yellow ink.In the above-mentioned displaying principle, the voltage method of regulating electrode is a prior art.Electrode is controlled the printing ink motion through voltage, so the corresponding electrode of controlling it of each printing ink, promptly each electrode is covered in corresponding cavity.But in fact,, therefore can just can control each printing ink indirectly and move through the electrode that is less than six because six kinds of printing ink are adjacent one another are.For example has only a bottom electrode (promptly being covered in down the electrode of cavity); When the left surface printing ink of needs left side cavity moves upward; The printing ink of cavity moves upward to left movement and then extruding left surface printing ink under can directly controlling through bottom electrode, moves to display layer until left surface printing ink.
For better understanding display device of the present invention, can be with reference to figure 3, Fig. 4.
Embodiment two
About display device; Can imagine that upper plenum is a display surface, and can get into display surface when showing at once with the printing ink of adjacent four cavitys all around of upper plenum; But the printing ink in the following cavity then needs chamber of middle transition just can arrive display surface, and this possibly cause adverse effect to the response time.Therefore, present embodiment improves.
As shown in Figure 5, between upper and lower cavity, establish the pipeline that is communicated with upper and lower cavity, the printing ink that descends cavity so just can be not through the transition of left and right cavity a direct stepping go into upper plenum and show, thereby saved the response time.
Embodiment three
In order to save the response time, the following not oil storage of cavity of present embodiment is black, and such pixel can show five kinds of colors altogether in the different moment.
Pixel can realize the kind of Show Color by amount of ink decision in the display device, therefore also can be to show that two kinds, four kinds colors, displaying principle are similar to the six looks demonstration of embodiment one, two.
Because it is incompatible between each printing ink; So each pixel of the present invention can also demonstrate the color that each printing ink blendes together, that is, make two kinds and above kind of printing ink get into display layer simultaneously; For example can realize half red ink; The demonstration of second half Yellow ink, perhaps 1/3 red ink, the demonstration of 2/3 Yellow ink.Monochromatic demonstration refers to a pixel and can realize a kind of color at synchronization, and double-colored demonstration is the mixed color of a pixel in two kinds of colors of synchronization, and three kinds of four kinds of mixing also can.But be applied in the display, each pixel also can realize comprising the color of mixing any several kinds in these six kinds of colors at synchronization, so utilize the collaborative of each pixel, and abundanter, realistic colour demonstration that display can be realized.By contrast, LCD, its RGB, the R pixel can only show R, and the G pixel can only show G, and the B pixel can only show B.And each pixel of the present invention can realize color more than five or six kinds, so can realize abundanter, true to nature display effect through these multiple colors.
Embodiment four
Present embodiment reduces the response time through optimizing electrode, and concrete scheme is at four sides of rectangular parallelepiped and the equal coated electrode of bottom surface.
Because electrode should be as much as possible to the seamless control of printing ink, for example can make electrode cover the whole inked areas except that display layer, promptly cover four sides and the bottom surface of rectangular parallelepiped.In fact, as long as electrode can be controlled whole inked areas fully, totally unnecessary covering fully.
Four sides and bottom surface all have the situation of counter electrode certainly will be faster than the situation reaction that only has bottom electrode, because the latter can only directly control cavity of resorption printing ink, its several faces are all through the control indirectly of cavity of resorption printing ink.
Embodiment five
Present embodiment provides a kind of and has utilized above-mentioned display device to carry out the monochromatic display packing that shows, this method puts on the voltage of said electrode through control, makes the printing ink of particular color get into upper plenum to show monochrome.
Embodiment six
Present embodiment provides a kind of display packing of utilizing above-mentioned display device to carry out double-colored demonstration, and this method puts on the voltage of said electrode through control, and it is double-colored to show to make the printing ink of two kinds of specific colors get into upper plenum.
Above embodiment only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. an electric moisten display device is characterized in that, comprises the ccontaining cavity of printing ink, is filled with the printing ink of different colours in the ccontaining cavity of said printing ink, the printing ink objectionable intermingling of different colours, and all be insoluble to the salt solusion that is arranged at around the printing ink.
2. device as claimed in claim 1 is characterized in that, the ccontaining cavity of said printing ink is made up of shell and the inner casing that is embedded in the shell, and said shell and inner casing are enclosed construction, in the cavity that said printing ink forms between shell and inner casing.
3. device as claimed in claim 2; It is characterized in that; The shape of said shell and inner casing is rectangular parallelepiped, and the ccontaining cavity of said printing ink this moment is divided into six cavitys of up, down, left, right, before and after, and said six cavitys are filled with the printing ink of different colours respectively; The corresponding electrode of controlling it of each printing ink, promptly each electrode is covered in corresponding cavity.
4. device as claimed in claim 3 is characterized in that, is provided with the pipeline that is communicated with upper and lower cavity between the upper and lower cavity of the ccontaining cavity of said printing ink.
5. device as claimed in claim 2 is characterized in that, is filled with the printing ink of different colours in the going up of the ccontaining cavity of only said printing ink, five cavitys in left, right, front and rear respectively.
6. device as claimed in claim 2 is characterized in that, is filled with the printing ink of different colours in any two or any four in six cavitys of the up, down, left, right, before and after of the ccontaining cavity of only said printing ink respectively.
7. device as claimed in claim 1 is characterized in that, said printing ink is hydrocarbon system row machine oil.
8. like each described device of claim 1～7, it is characterized in that said device also comprises electrode.
9. one kind is utilized the described device of claim 8 to show monochromatic method, it is characterized in that, puts on the voltage of said electrode through control, makes the printing ink of particular color get into upper plenum to show monochrome.
10. one kind is utilized the described device of claim 8 to show double-colored method, it is characterized in that, puts on the voltage of said electrode through control, and it is double-colored to show to make the printing ink of two kinds of specific colors get into upper plenum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110152652.3A CN102654707B (en) | 2011-06-08 | 2011-06-08 | Electrowetting display device and display method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110152652.3A CN102654707B (en) | 2011-06-08 | 2011-06-08 | Electrowetting display device and display method |
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| CN102654707A true CN102654707A (en) | 2012-09-05 |
| CN102654707B CN102654707B (en) | 2014-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561688A (en) * | 2017-10-11 | 2018-01-09 | 重庆秉为科技有限公司 | A kind of electrowetting display device for being provided with pixel wall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742221A (en) * | 2003-01-27 | 2006-03-01 | 皇家飞利浦电子股份有限公司 | Display device |
| CN101169512A (en) * | 2007-11-20 | 2008-04-30 | 北京派瑞根科技开发有限公司 | Display unit and display device based on electrowetting technology |
| KR20080071250A (en) * | 2007-01-30 | 2008-08-04 | 전북대학교산학협력단 | Electrowetting display |
| US20090103159A1 (en) * | 2007-10-18 | 2009-04-23 | Industrial Technology Research Institute | Electrowetting Display Devices |
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2011
- 2011-06-08 CN CN201110152652.3A patent/CN102654707B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742221A (en) * | 2003-01-27 | 2006-03-01 | 皇家飞利浦电子股份有限公司 | Display device |
| KR20080071250A (en) * | 2007-01-30 | 2008-08-04 | 전북대학교산학협력단 | Electrowetting display |
| US20090103159A1 (en) * | 2007-10-18 | 2009-04-23 | Industrial Technology Research Institute | Electrowetting Display Devices |
| CN101169512A (en) * | 2007-11-20 | 2008-04-30 | 北京派瑞根科技开发有限公司 | Display unit and display device based on electrowetting technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561688A (en) * | 2017-10-11 | 2018-01-09 | 重庆秉为科技有限公司 | A kind of electrowetting display device for being provided with pixel wall |
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