DE2722387A1 - Powerful passive electrooptical display cell - has rustless steel frame with sintered glass frit separating glass plates - Google Patents

Powerful passive electrooptical display cell - has rustless steel frame with sintered glass frit separating glass plates

Info

Publication number
DE2722387A1
DE2722387A1 DE19772722387 DE2722387A DE2722387A1 DE 2722387 A1 DE2722387 A1 DE 2722387A1 DE 19772722387 DE19772722387 DE 19772722387 DE 2722387 A DE2722387 A DE 2722387A DE 2722387 A1 DE2722387 A1 DE 2722387A1
Authority
DE
Germany
Prior art keywords
plates
frame
cell
glass
cross brace
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19772722387
Other languages
German (de)
Inventor
Yves Ruedin
Michel Sallin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebauches SA
Original Assignee
Ebauches SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ebauches SA filed Critical Ebauches SA
Publication of DE2722387A1 publication Critical patent/DE2722387A1/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

A passive electro-optical display cell consists of two glass plates with conductive symbols between which an active component (electrophoretic) is sealed. A cross strut frame which keeps the plates at the proper spacing is made of hot oxidising steel which is bonded to both plates by a glass frit layer. This makes it possible to design more powerful display cells with greater distances of the glass plates. Glass frit without the new strut frame would expand too much during the heating which is required for their sintering operation. Useful e.g. in watch making.

Description

Passive elektro-optische Anzeigezelle Passive electro-optical display cell

(Schweiz, Nr. 5.997/76 vom 13. Mai 1976) 4 Seiten Beschreibung 5 Patentansprüche 1 Blatt Zeichnung Die vorliegende Erfindung betrifft eine passive elektro-optische Anzeigezelle mit zwei in Abstand voneinander angeordneten Glasplatten, zwischen denen ein durch Versiegelungsmittel zurückgehaltener Aktivbestandteil angebracht ist, die außerdem die Maßhaltigkeit der Platten in zusammengebautem Zustand gewährleisten. (Switzerland, No. 5.997 / 76 of May 13, 1976) 4 pages description 5 Claims 1 sheet of drawing The present invention relates to a passive electro-optical display cell with two spaced apart Glass plates between which an active ingredient retained by a sealant is attached, which also the dimensional accuracy of the panels when assembled guarantee.

In den bekannten passiven elektro-optischen Anzeigezellen verwendet man gewöhnlich zur Sicherung der miteinander in leichtem Abstand voneinander zusammengebauten Platten einen Rahmen aus durch Sintern erstarrter Glaspaste, die unter der Bezeichnung zGlassfrit" bekannt ist. Das Sinterverfahren der Glaspaste erlaubt jedoch nicht, in diesem Material verhältnismäßig starke Elemente zu verwirklichen, weil die Glaspaste sich dann während des zu ihrem Sintern bestimmten Erhitzens ausdehnen wUrde.Used in the known passive electro-optical display cells one usually used to secure the assembled at a slight distance from each other Plates have a frame made of glass paste solidified by sintering, under the designation zGlassfrit "is known. However, the sintering process of the glass paste does not allow to realize relatively strong elements in this material, because the glass paste would then expand during the heating intended to sinter them.

Entsprechend dem aktiven für die Anzeigezelle verwendeten Bestandteil müssen die Platten in einer Entfernung voneinander stehen, die von größerer Bedeutung ist, als dies allgemein der Fall ist.According to the active ingredient used for the display cell the panels must be at a distance from each other that is of greater importance than is generally the case.

Aufgabe der vorliegenden Erfindung ist es, ein Kittel zu schaffen, das es srmdglicht solche Zellen zu verwirklichen, deren Platten verhältnismäßig weit voneinander entfernt sind.The object of the present invention is to create a smock which makes it possible to realize such cells whose plates are proportionately are far apart.

Zur Lösung dieser Aufgabe wird fUr die passive elektro-optische Anzeigezelle entsprechend der Erfindung vorgeschlagen, daß ihre Platten durch eine Querverstrebung voneinander in Abstand gehalten sind, die die Form eines mit jeder der Platten durch eine Schicht aus Glaspaste verklebten Rahmens hat, die durch Sintern erstarrt ist und die Versiegelungsmittel darstellt.To solve this problem, the passive electro-optical display cell proposed according to the invention that their plates by a cross brace are spaced from each other, taking the form of one with each of the panels through has a layer of glass paste glued to the frame that has solidified by sintering and represents the sealant.

Weitere Einzelheiten und Vorteile der Erfindung werden nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels und zweier Abwandlungen im einzelnen näher beschrieben.Further details and advantages of the invention are provided below based on an embodiment shown in the drawing and two modifications described in detail.

Es zeigen Fig. 1 einen Aufriß einer passiven elektro-optischen Anzeigezelle zur Verwendung in der Uhrmacherei, Fig. 2 u, 3 entsprechende Ansichten der beiden Abwandlungen.1 shows an elevation view of a passive electro-optical display cell for use in watchmaking, Fig. 2 and 3 corresponding views of the two Modifications.

Die in Fig. 1 dargestellte Zelle umfaßt zwei Glasplatten, eine vordere 1 und eine hintere 2, zwischen denen ein Bestandteil 3 von beispielsweise elektrophoretischer Art angeordnet ist. Da dieses Material erfordert, daß die Platten in einem relativ großen Abstand voneinander in der Größenordnung von etwa 60 Mikron gehalten werden, ist eine Querverstrebung 4 in Form eines Rahmens aus nicht oxidierendem Stahl zwischen ihnen angeordnet. Eine Schicht 5 aus Glassfrit ist zwischen jeder Platte 1 und 2 und der Verstrebung 4 angebracht, um einerseits die Dichtheit des Ganzen und andererseits die Maßhaltigkeit im zusammengebauten Zustand zu gewährleisten. Der Schmelzpunkt des die Querverstrebung 4 bildenden Materials liegt über dem der Glaspaste.The cell shown in Fig. 1 comprises two glass plates, a front one 1 and a rear 2, between which a component 3 of, for example, electrophoretic Kind is arranged. As this material requires that the panels be in a relatively large spacing from each other, on the order of about 60 microns, is a cross brace 4 in the form of a frame made of non-oxidizing steel between arranged them. A layer 5 of frit is between each panel 1 and 2 and the strut 4 attached to on the one hand the tightness of the whole and on the other hand to ensure dimensional accuracy in the assembled state. The melting point of the material forming the cross brace 4 lies above that of the glass paste.

Der Rahmen 4 hat vorzugsweise auf jeder Seite Ausstülpungen 4a, die in BerUhrung mit der einen oder anderen der Platten 1 und 2 stehen und dadurch die Genauigkeit ihrer Entfernung voneinander gewährleisten. Es sei bemerkt, daß die Höhe dieser Ausstdlpungen und die Dicke der Schichten 5 aus Glassfrit in der Zeichnung stark übertrieben worden sind.The frame 4 preferably has protuberances 4a on each side which are in contact with one or the other of the plates 1 and 2 and thereby the Ensure accuracy of their distance from each other. It should be noted that the Height of these Ausstdlpungen and the thickness of the layers 5 of frit in the drawing have been greatly exaggerated.

Vor dem Auftragen des Glassfrit auf die Platten 1 und 2 werden diese innen, d,h. auf ihren sich gegenüberliegenden Seiten, mit einer Schicht 6 aus durchscheinendem Isoliermaterial, beispielsweise aus Siliziumdioxid überzogen, wodurch verhindert wird, daß der als elektrischer Leiter wirkende Rahmen 4 zwischen den Leitspuren 7 und 8 auf den Platten 1 und 2 einen Kurzschluß hervorruft.Before the glass frit is applied to plates 1 and 2, these are inside, i.e. on their opposite sides, with a layer 6 of translucent Insulating material, for example coated from silicon dioxide, which prevents is that acting as an electrical conductor frame 4 between the lead tracks 7 and 8 on the plates 1 and 2 causes a short circuit.

Die Abwandlung der Fig. 2 unterscheidet sich von der ersten im wesentlichen dadurch, daß der die Querverstrebung bildende Rahmen 9 von Löchern durchbohrt ist, die senkrecht zu seiner Ebene angeordnet sind und in die Glassfrit 5 eindringt, um die Verbindung zwischen den beiden Platten 1 und 2 zu verbessern.The modification of FIG. 2 differs from the first essentially in that the cross brace forming frame 9 is pierced by holes, which are arranged perpendicular to its plane and penetrate into the glass frit 5, to improve the connection between the two plates 1 and 2.

Die Abwandlung der Fig. 3 unterscheidet sich von der AusfUhrungsform der Fig. 1 dadurch, daß Kontaktklemmen 11 und 12 aus elektrisch leitendem Material, beispielsweise aus dem unter der Bezeichnung "CERMET" im Handel befindlichen Material, in dem Glassfrit-Material 5 angeordnet sind, wobei eine davon in Berührung mit der Gegenelektrode 8 steht, die von der hinteren Platte 2 der Zelle getragen wird, und die andere mit einer Ausgangsspur 13 dieser, die von der vorderen Platte 1 getragen wird.The modification of FIG. 3 differs from the embodiment of Fig. 1 in that contact terminals 11 and 12 made of electrically conductive material, for example from the material available under the name "CERMET", are arranged in the glass frit material 5, one of which is in contact with the Counter electrode 8, which is carried by the rear plate 2 of the cell, and the other with an output track 13 of these carried by the front plate 1 will.

Die elektrisch leitende Querverstrebung 14 dient als Verbindungsmittel zwischen der Gegenelektrode 8 und dem Anschluß 13, der auf diese Weise so auf die vordere Platte 1 zurückgebracht wird, daß alle Anschlüsse der Zelle durch diese Platte getragen werden.The electrically conductive cross brace 14 serves as a connecting means between the counter electrode 8 and the terminal 13, which in this way so on the front plate 1 is brought back that all connections of the cell through this Plate to be worn.

PatentansprUche: Patent claims:

Claims (5)

Patentanspr(iche: ( 1) Passive elektro-optische Anzeigezelle mit zwei in Abstand -.voneinander angeordneten Glasplatten, zwischen denen ein durch Versiegelungsmittel zurückgehaltener Aktivbestandteil angebracht ist, die unter anderem die Maßhaltigkeit der Platten in zusammengebautem Zustand gewährleisten, d a -d u r c h g e k e n n z e i c h n e t , daß die Platten (1, 2) durch eine Querverstrebung (4) voneinander in Abstand gehalten sind, die die Form eines mit jeder der Platten durch eine Schicht aus Glaspaste verklebten Rahmens hat, die durch Sintern erstarrt ist und die Versiegelungsmittel darstellt. Patent claim: (1) Passive electro-optical display cell with two spaced-apart glass plates, between which a through Sealant retained active ingredient is attached, which is below among other things, ensure the dimensional accuracy of the panels in the assembled state, d a d u r c h e k e n n n z e i c h n e t that the plates (1, 2) are cross braced (4) are spaced from each other that take the shape of one with each of the panels has a frame bonded by a layer of glass paste, which solidifies by sintering and represents the sealant. 2. Zelle nach Anspruch 1, d a d u r c h g e k e n n z e i c h -n e t , daß die rahmenförmige Querverstrebung (4) durch senkrecht zu ihrer Ebene verlaufende Locher (10) durchbohrt ist, die mit Glaspaste gefüllt sind. 2. Cell according to claim 1, d a d u r c h g e k e n n z e i c h -n e t that the frame-shaped cross brace (4) through perpendicular to its plane Hole (10) is pierced, which are filled with glass paste. 3. Zelle nach Anspruch 1, d a d u r c h g e k e n n z e i c h -n e t , daß die rahmenförmige Querverstrebung (4) aus einem Material besteht, dessen Schmelzpunkt Uber dem der Glaspaste liegt. 3. Cell according to claim 1, d a d u r c h g e k e n n z e i c h -n e t that the frame-shaped cross brace (4) consists of a material whose Melting point above that of the glass paste. 4. Zelle nach Anspruch 1, d a d u r c h g e k e n n z e i c h -n e t , daß die beiden Glasplatten (1, 2) auf ihren gegenüberliegenden Seiten von einer durchscheinenden Isolierschicht (6) überzogen sind, was jedes Risiko eines Kurzschlusses zwischen den von ihnen getragenen Leitspuren (7, 8) durch Vermittlung des die Querverstrebung bildenden Rahmens (4), der aus einem elektrisch leitenden Material besteht, vermeidet. 4. Cell according to claim 1, d a d u r c h g e k e n n z e i c h -n e t that the two glass plates (1, 2) on their opposite sides of a translucent insulating layer (6) are coated, which means there is no risk of a Short circuit between the lead tracks (7, 8) carried by them through mediation of the cross brace forming frame (4), which consists of an electrically conductive Material exists, avoids. 5. Zelle nach Anspruch 1, d a d u r c h g e k e n n -z e i c h n e t , daß die rahmenförmige Querverstrebung (4) ein elektrisches Verbindungsmittel zwischen der Leitspur (8) der Gegenelektroden bildet, die durch die hintere Platte (2) getragen ist, und der Ausgangsspur (13) der Zelle, die von der vorderen Platte (1) getragen ist, wobei Kontaktklemmen (11, 12) in den Schichten aus Glaspaste angebracht sind, um die elektrische Verbindung zwischen der Leitspur (8) der Gegenelektroden (8) und der Ausgangsspur (13) zu gewährleisten.5. The cell of claim 1, d a d u r c h g e k e n n -z e i c h n e t that the frame-shaped cross brace (4) is an electrical connection means between the guide track (8) of the counter-electrodes formed by the rear plate (2) is supported, and the exit track (13) of the cell by the front panel (1) is carried with contact clips (11, 12) attached in the layers of glass paste are to the electrical connection between the guide track (8) of the counter-electrodes (8) and the exit track (13).
DE19772722387 1976-05-13 1977-05-13 Powerful passive electrooptical display cell - has rustless steel frame with sintered glass frit separating glass plates Pending DE2722387A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH599776 1976-05-13

Publications (1)

Publication Number Publication Date
DE2722387A1 true DE2722387A1 (en) 1977-11-17

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DE (1) DE2722387A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620473A1 (en) * 1993-04-15 1994-10-19 France Telecom Method of making a display cell with realisation of the contact for the counter-electrode
FR2704073A1 (en) * 1993-04-15 1994-10-21 France Telecom Method of producing a display cell with counterelectrode contacting
EP0713125A1 (en) * 1994-11-18 1996-05-22 Asulab S.A. Electrical cell

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6982178B2 (en) 2002-06-10 2006-01-03 E Ink Corporation Components and methods for use in electro-optic displays
KR20070002554A (en) 2005-06-30 2007-01-05 엘지.필립스 엘시디 주식회사 Liquid crystal display device and fabricating the same
JP4564472B2 (en) * 2006-07-11 2010-10-20 エルジー ディスプレイ カンパニー リミテッド Liquid crystal display device and manufacturing method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620473A1 (en) * 1993-04-15 1994-10-19 France Telecom Method of making a display cell with realisation of the contact for the counter-electrode
EP0620474A1 (en) * 1993-04-15 1994-10-19 France Telecom Method of making a display cell with realisation of the contact for the counter-electrode
FR2704073A1 (en) * 1993-04-15 1994-10-21 France Telecom Method of producing a display cell with counterelectrode contacting
FR2704074A1 (en) * 1993-04-15 1994-10-21 France Telecom Method for producing a display cell with counter-electrode recovery.
US5431771A (en) * 1993-04-15 1995-07-11 France Telecom Etablissement Autonome De Droit Public Method for embodying a display cell with counter-electrode contact pick-up
US5482590A (en) * 1993-04-15 1996-01-09 France Telecom Etablissement Autonome De Droit Public Method for forming a display cell with counter-electrode contact pick-up
EP0713125A1 (en) * 1994-11-18 1996-05-22 Asulab S.A. Electrical cell
FR2727216A1 (en) * 1994-11-18 1996-05-24 Asulab Sa ELECTRICAL CELL OF THE TYPE INCLUDING TWO PARALLEL SUPPORT BLADES, IN PLASTIC MATERIAL, SPACED FROM ONE OF THE OTHER, CARRYING ELECTRODES ON THEIR SIDES
US5745208A (en) * 1994-11-18 1998-04-28 Asulab S.A. Electrical cell of the type comprising two plastic parallel support plates, set apart from each other, carrying electrodes on their faces

Also Published As

Publication number Publication date
JPS52139453A (en) 1977-11-21

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