Display unit
Abstract
PURPOSE:To make it possible to exclude unstable factor of electrophoresis phenomenon by making visible area of a cell in which charged colored particles are contained different between the case where the charged colored particles are positioned on display face side and the case where they are positioned off from the display face. CONSTITUTION:When potential reverse to charge polarity of charged colored particles 6 is given to a desired individual transparent electrode 3 according to a display signal, charged colored particles 6 in a cell 7 corresponding to the individual transparent electrode 3 to which potential is gives are moved to the individual transparent electrode 3 side by electrophoresis phenomenon, and charged colored particles 6 in the cell 7 corresponding to the individual transparent electrode 3 to which potential is not given remain in a common electrode 4 side. Each cell has conical form in which sectional area becomes smaller toward the common electrode 4 side, and accordingly, when charged colored particles 6 gathered in the common electrode 4 side, the area covered by charged colored particles 6 becomes small. Accordingly, in a cell 7 in which charged colored particles 6 gathered in the individual transparent electrode 3 side, color of charged colored particles 6 is seen dominatingly, and a cell 7 in which charged colored particles 6 are gathered in the common electrode 4 side, color of a separating member 2 or the common electrode 4 is seen dominatingly.
Term
Term ended
Projected expiry passed 28 October 2005, 20.9 years ago.
- Priority and filed
- Published
- Projected expiry
- Today
3 claims: 3 independent, 0 dependent
- 1[Claim(s)] 【特許請求の範囲】 (1) From a position which estranged said electrification coloring particle from a display surface in the time of electric field un-impressing and electric field impression using an electrophoresis phenomenon of an electrification coloring particle dispersed in an insulating fluid enclosed in a sealed cell to said display surface side Or a display changing a case where said electrification coloring particle is in a position by the side of a display surface, and a case where it is in a position estranged from a display surface in visible area of a cell in which said electrification coloring particle is stored in the device which displays by making it move conversely. (1)密閉されたセル内に封入された絶縁性液体中に分散させた帯電着色粒子の電気泳動現象を利用して電界非印加時と電界印加時とで前記帯電着色粒子を表示面から離間した位置から前記表示面側に、またはその逆に移動させて表示を行う装置において、前記帯電着色粒子の収容されているセルの可視面積を、前記帯電着色粒子が表示面側の位置にある場合と、表示面から離間した位置にある場合とで異ならせたことを特徴とする表示装置。
- 2(2) The display according to claim (1), wherein it made opaque a desired portion by the side of an inside of a sealed cell and a cross-sectional area parallel to a display surface makes this cell shape which is the minimum in an intermediate part with the side opposite to a display surface and this display surface. (2)密閉されたセルの内面側の所要部を不透明とし、かつこのセルを表示面と平行な断面積が表示面とこの表示面の反対側との中間部において最小である形状としたことを特徴とする特許請求の範囲第(1)項記載の表示装置。
- 3(3) The display according to claim (1), wherein impression of an electric field is performed by irradiation of a corona ion style. (3)電界の印加は、コロナイオン流の照射によって行われることを特徴とする特許請求の範囲第(1)項記載の表示装置。
Independent claims3
4 paragraphs, as filed
[Detailed Description of the Invention]
[Industrial Application] This invention is made into a thin form, does not have a flicker, and relates to a display with sufficient display quality. [Description of the Prior Art] In Drawing 7 making this kind of the whole Display conventionally, and having a thing using the principle of electrophoresis and in which showing that sectional view of one example at the 7th rXI, The cell-like space which contains electrification coloring particle 6 in inside and where it was colored, or opaque insulating fluid 5 calls sealing member]8, and is made by Minute chick member 2 is filled up, individual transparent electrode 3 is arranged for every self in the display surface, and it is arranged at the other side [ it grounded / 1i4 ]. For this-Tackle action(ing), 1 display signal is followed, and it is To enjoy alternatively to individual transparent electrode 3 about potential contrary to the electrification polarity of about [ number 10V ] electrification coloring particle 6. Then, i1 in the self corresponding to the individual transparent * hair 3 who was able to give * potential? * - electrification coloring particle 6 in the self corresponding to individual transparent Electricity 8i3 which it carried out, and blue particles 6 moved to individual transparent ' electrode 311] by the principle of electrophoresis, and was not able to give potential on the other hand -- common TL -- remain in 4 sides very much. Since insulating fluid 5 in the self is opaque or it is colored If it sees from the 3rd page of an individual transparent electrode, The self to which belt'It coloring particles 6 gathered for the individual transparent electrode 3 side will look close to the color of electrification coloring particle 6, and will be visible to the color of insulating fluid 5 the very thing in the self in which electrification coloring particles 6 gathered for the common electrode 4 side. Therefore, it can display by giving potential alternatively to arbitrary individual transparent electrodes 3. [Problem(s) to be Solved by the Invention] In order that the display by the conventional electrophoresis use may carry out such composition and operation, it is indispensable for insulating fluid 5 in the self to be opaque, or to be colored, and it is Ah 1 -- generally it is difficult to constitute from insulating fluid 5 A single component for this reason insulating fluid 5 width -- in any way -- and coloring n-i! mixing - or ion up -- C -- composition T -- oneself -- although things are common When electrophoresis of the electrification particles for a display tends to be carried out in insulating fluid 5, it turns on for 71 colors of Culture objects! That - or A talent /carries out in A f In had the fault to the electrophoresis phenomenon for which it asks of having carried out unstable With safety reasons, having been easy to act, and carrying out the Tough fall of the stability as a display, and the life for this reason. [Literature about prior art Refer to : SID 84142 [ DrGEST P] "A Defect-Tolerant Active-Matrix Electro-phoretic DiSplay".] The object of this invention, It is in providing a mind migration display about '1 which eliminated the destabilizing element of the electrophoresis phenomenon in the conventional electrophoretic display. [Means for Solving the Problem] A case where an electrification coloring particle is in a position by the side of a display surface, and a case where it is in a position estranged from a display surface are changed in visible area of a cell in which belt ''Iff and a coloring particle are stored although a display concerning this invention displays using an electrophoresis phenomenon. [Function] Area, One which an electrification coloring particle covers in the case where 91? electrodeposition color particles gather for the display surface side by electric field impression in this invention, and the case where it gathers having estranged from the display surface for :Filtration = t Since it differs, a color changes, and an indication is given by this. [- Cause side, the Flow side] ;;41 -- "l : section ' explaining a 1st [ of an invention of Student ] A fork style side -- < -- Myself. the -- plan one, and it = sets and encloses what mixed the organic matter which contained an ionic surfactant and paints in insulating fluid 5 in the self constituted by separating member 2. sealing member]. be alike so that an ionic surfactant Breathing to the organic matter containing m1, and is stabilized electrochemically by this, you distribute and the character of electrophoresis is shown -- xi- and -- -C Unlike the conventional example of Drawing 7, the shape of the section of the self is. In order to operate this, according to a display signal, potential contrary to the electrification polarity of electrification coloring particle 6 about number LOV is given to desired individual transparent electrode 3. q Then, electrification coloring particle 6 in the self of the position corresponding to obtained individual transparent Electricity i3 moves to the individual transparent electrode 3 side by 'tlambda migration expression expenses, and electrification coloring particle 6 in the self of the position corresponding to individual transparent electrode 3 which was not able to add TL grade remains potential in the common electrode 4 side. each self -- Bothi from the 5 individual transparent electrode 3 side! going to the one electrode 4 side -- Sectional results -- small -- Saka -- the area which electrification coloring particle 6 seen from the display surface side rather than the case where it gathers for the individual transparent electrode 3 side when it is considered as a cone, it comes out and electrification coloring particles 6 gather for the common type 8i4 side for a certain reason covers -- small -- Saka -- . Therefore, as for the self to which electrification coloring particles 6 gathered for the 1 individual transparent electrode 3 side, the color of electrification tau color particles 6 looks dominantly, As for the self for which electrification coloring grains F6 gathered, Age members 2 other than electrification coloring particle 6 or the color of common electrode 4 will look dominantly, and it displays on the common electrode 4 side using this change. Since insulating fluid 5 in the self is transparent, it can constitute without including stain 1 grade, and the stability and the life of an electrophoresis phenomenon of electrification coloring particle 6 in the inside of insulating fluid 5 are Refugee(ed) by the rice cake stuffed with sweet beans as compared with insulating fluid 5 which includes dye etc. like prior art. Although the thing of the form which becomes so large that Both 'if1 electrode 4 is used as individual transparent electrode 3, it is easy to be natural also as a display surface and the cross-sectional area of the self goes the common electrode 4 side to the individual transparent electrode 3 side although the account example of A showed what made individual transparent electrode 3 the display surface was shown, of course, the contrary is also available. The depth of the self may be made into a several 10 Le m grade in this example. As insulating fluid 5, high purity oil (for example, brand name Near Isopar of Esso) may be used, for example, and it is desirable for Prepared material 2 to use an insulator for sealing member 10 minutes. 2nd [ The ] figure~figure 4 is a figure showing the section shape of the self of other examples of this invention. If the one side of the display surface differs in base area from the side opposite [ the ] to, as shown in these figures, various things are possible for the shape of the self. It does not interfere, even if the form of the seen self can be considered as various forms, such as circular and a rectangle, from a display surface and it has a form of a character directly. Drawing 5 is a figure showing the example of further others of this invention, and side lock part material with transparent IA and 2A are the colored part layer material. although base area of the self by the side of community ' electrode 4 is made the same the individual transparent electrode 3 side and it comes out in this example Although the color of electrification coloring particle 6 looks dominant when electrification coloring particle 6 is in the individual transparent electrode 3 side since it comprises part layer material 2A which has a neck in the intermediate part of the self and the self eye object colored, When belt ' Colored colored particles 6 is in the common electrode 4 side, if it sees from the individual transparent' pole [ y ] 3 side, the color of the wall surface of the self will look dominant and it can display it according to the difference of 1 both color. According to this example (i'! electrodeposition electrodeposition child particle 6 Part becomes larger than the example of 1st [ The ] figure~figure 4, and it can make the whole thickness thin.) Drawing 6 is lambda for which the example of further others of this invention is shown, as for a corona ion generator and 9, surface heavy burden]1 is a pulse for ion waves A an ion legislation A board and 10 8, and others are the same as Drawing 5. This is carried out A jacket 8 from corona ion 1 Stand for operating, the high voltage about number Kv of This is applied, and = Konai 10,000 A is generated, the A 10,000 A style Le j business by which corona ion generator 8 adds a To come out ion style to A and t A style control board 9 -- carrying out ON-0FF control by pulse 11 Form the electrostatic image by surface charge 10 on transparent sealed part t]A, electrification coloring particle 6 is made to start electrophoresis by the electric field which produces by this O Electrostatic image, and it displays like other examples. Instead of giving the electric field for electrophoresis with individual transparent electrode 3 like the example of Drawing 1 and Drawing 5 after all, The electric field for electrophoresis can be given by surface charge]O by ion style irradiation, and the structure of an expression medium, a driver circuit, etc. can be further simplified as compared with what installs individual transparent electrode 3. In these five fruits, the shape of the self, and the upper and the Shimonoseki charge of the self can use various forms like the thing in the above-mentioned example also in the example which should just perform - and appearance corona electrical charging of reverse polarity for example, with the time of writing for eliminating the picture formed once and which is shown in this Drawing 6. It has, even if it uses a means to form a Static TL image using the pin electrodes for electrostatic records, instead of using an ion style, and there is no Lung inconvenience. a hill -- in the example using account individual transparent electrode 3, 1 individual transparent electrode 3 and common electrode 4 are formed in the shape of Ma 1 Riksu, and it may be made to display by choosing the necessary self. it can set in each above-mentioned example -- even if transparent-under insulating fluid 5:Standing and coloring is carried out, it does not interfere. [Effect of the Invention] As it was explained as Or more, this invention uses a TrL mind migration phenomenon, and performs 7 Display, Since visible side Conclude of the ing cell was changed by the case where it is in This to the extent that the electrification coloring particle estranged from the To curse case and the display surface to This in accommodation of the electrification coloring particle at least in that by the side of a display surface, Since it is not necessary to disperse the particles which perform electrophoresis in a transparent insulating fluid, and to add another blue particles for an insulating fluid for coloring or the object made opaque, a mind migration phenomenon stabilizes * and, as a result, there is an advantage that the stability and the life as a display are very large. And as an applicable field of this invention, it can constitute in a thin form as a display, and can apply from Flickering fish Something as a display which changes to CRT. Since it is also easy to constitute the display of a big screen, it is applicable as a display like a bulletin board simultaneously shown to 5 big-screen display or a lot of people.
[Brief Description of the Drawings]
In Drawings 1, Drawing 4 is a sectional view of one example of this invention, Drawing 2, Drawing 3, and a sectional view showing the shape of the cell for electrophoresis of another example of this invention, The sectional view in which Drawing 5 shows the example of further others of this invention, the sectional view in which Drawing 6 shows the example of further others of this invention, and Drawing 7 are sectional views showing the example of the conventional display which used the electrophoresis phenomenon. the inside of a figure, and 1 -- a sealing member and 2 -- a part is member and 3 -- an individual transparent electrode and 4 -- a common electrode and 5 -- as for a corona ion generator and 9, belt TrLR color particles and 7 are [ surface charge and 11 ] the pulses for ion style control an ion style control board and 10 a cell and 8 an insulating fluid and 6. Drawing 1 Drawing 2 Drawing 3 Drawing 4 Drawing 5 Drawing 7
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US6865012B2 | Cited by | United States of America | Applicant |
| US6906779B2 | Cited by | United States of America | Applicant |
| JP2002090783A | Cited by | Japan | Search report |
| US6859302B2 | Cited by | United States of America | Applicant |
| JP2002513169A | Cited by | Japan | Examiner |
| US6867898B2 | Cited by | United States of America | Applicant |
| US6930818B1 | Cited by | United States of America | Applicant |
| US7057600B2 | Cited by | United States of America | Search report |
| JP2008533521A | Cited by | Japan | Examiner |
| JP2002055366A | Cited by | Japan | Examiner |
| US8289249B2 | Cited by | United States of America | Applicant |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Cancellation because of completion of termEXPY | EXPY |
Numbers
- Publication
- 62-99727
- Application
- 23934685
Titles2
- Japanese
- 【発明の名称】表示装置
- English
- DISPLAY UNIT
Classification
- IPC, 3
- G02F1 167
- G02F1 19
- G09F9 35