DE2344050A1 - Vessel wall parts with very small definite clearance - designed esp. for fluid crystal indicator screens of glass - Google Patents

Vessel wall parts with very small definite clearance - designed esp. for fluid crystal indicator screens of glass

Info

Publication number
DE2344050A1
DE2344050A1 DE19732344050 DE2344050A DE2344050A1 DE 2344050 A1 DE2344050 A1 DE 2344050A1 DE 19732344050 DE19732344050 DE 19732344050 DE 2344050 A DE2344050 A DE 2344050A DE 2344050 A1 DE2344050 A1 DE 2344050A1
Authority
DE
Germany
Prior art keywords
glass
plates
crater
wall parts
spacer elements
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.)
Granted
Application number
DE19732344050
Other languages
German (de)
Other versions
DE2344050B2 (en
DE2344050C3 (en
Inventor
Kurt Dipl Ing Hoeck
Josef Sacher
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19732344050 priority Critical patent/DE2344050C3/en
Priority claimed from DE19732344050 external-priority patent/DE2344050C3/en
Publication of DE2344050A1 publication Critical patent/DE2344050A1/en
Publication of DE2344050B2 publication Critical patent/DE2344050B2/en
Application granted granted Critical
Publication of DE2344050C3 publication Critical patent/DE2344050C3/en
Expired legal-status Critical Current

Links

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
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/006—Re-forming shaped glass by fusing, e.g. for flame sealing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/30—Organic material
    • B23K2103/42—Plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • B23K2103/52—Ceramics

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The parts are intended especially for fluid crystal indicator screens made of glass. A number of distancing pieces are inserted between the parts especially in discreet areas. On at least one of the plates there are arranged as distance pieces crater-shaped mounds of material formed by fusion, whose height is that of the clearance to be observed, and placed at very long intervals in relation to this clearance. These mounds keep apart the plates laid on one another. The distance pieces can be crater-shaped mounds of material formed by the action of a very brief laser beam.

Description

SIEMENS AKTIENGESELLSCHAFT München 2, den 31. AUG. 1973 Berlin und München Witteisbacherplatz 2SIEMENS AKTIENGESELLSCHAFT München 2, AUG 31. 1973 Berlin and Munich Witteisbacherplatz 2

VPA 73/1156 VPA 73/1156

Mit sehr geringem defniertem Abstand distanzierte Gefäßwandungsteile Vessel wall parts distanced with a very small defined distance

Die Erfindung betrifft mit sehr geringem definiertem Abstand distanzierte Gefäßwandungsteile, wie Platten oder dergleichen aus Glas, Keramik, Kunststoff, Metall oder dergleichen, insbesondere für Flüssigkristall-Anzeigeschirme aus Glas, zwischen denen insbesondere in diskreten Bereichen eine Vielzahl Distanzierungselemente angeordnet (eingefügt) sind. Die Erfindung findet Anwendung insbesondere auf dem Gebiet der Opto-Elektronik. Sie hat besondere Bedeutung für Flüssigkristall-Anzeigeschirme, Flachbildschirme oder dergleichen.The invention relates to vessel wall parts spaced apart at a very small defined distance, such as plates or the like made of glass, ceramic, plastic, metal or the like, in particular for liquid crystal display screens made of glass, between which a large number of spacing elements are arranged (inserted) in particular in discrete areas. the The invention has particular application in the field of Opto-electronics. It is of particular importance for liquid crystal display screens, Flat screens or the like.

Die Realisierung eines konstanten sehr geringen, wesentlich weniger als 1 mm betragenden Abstandes zweier gegenüberliegender (angeordneter) Wandungsteile bei Hohlräumen in flachen, beliebig flächig ausgedehnten Gefäßen aus Materialien, wie zum Beispiel Glas, Keramik, Kunststoff und Metall, macht technisch erhebliche Schwierigkeiten. Bisher wurde dieses Problem nur mit Zwischenlagen von Abstandsstreifen aus z.B. Glimmer, dünnen Metalldrähten oder dergleichen, oder mit Materialkügelchen aus z.B. Glas, eingebettet im Lotmaterial oder auch durch Aufdampfen von Fremdmaterial gelöst.The realization of a constant, very small, much less than 1 mm distance between two opposite ones (arranged) wall parts for cavities in flat, arbitrarily extensive vessels made of materials, such as glass, ceramics, plastic and metal, causes considerable technical difficulties. So far this has been Problem only with intermediate layers of spacer strips made of e.g. mica, thin metal wires or the like, or with Material beads made of e.g. glass, embedded in the solder material or dissolved by vapor deposition of foreign material.

Der Nachteil dieser bekannten Maßnahmen besteht u.a. darin, daß im betreffenden Wechselwirkungsraum ein weiterer vom Gehäuse abweichender Werkstoff mit dem Flüssigkristall inThe disadvantage of these known measures consists, among other things, in the fact that in the relevant interaction space another of the Housing different material with the liquid crystal in

509813/0461 VPA 9/170/3041 Sn/Fck - 2 -509813/0461 VPA 9/170/3041 Sn / Fck - 2 -

Berührung steht und daß vor allem die Fixierung dieser Distanzelemente meist nur unvollkommen ist, so daß Gefahr für Störungen im Betrieb, insbesondere bei mobilen Anlagen, besteht.There is contact and that, above all, the fixation of these spacer elements is usually only imperfect, so that there is a danger for disruptions in operation, especially in the case of mobile systems.

Die der Erfindung zugrundeliegende Aufgabe besteht darin, die aufgezeigten Schwierigkeiten und Nachteile zu vermeiden und statt dessen eine technisch einfache und zuverlässig funktionierende Methode zu schaffen.The object on which the invention is based is to avoid the difficulties and disadvantages indicated and instead to create a technically simple and reliably functioning method.

Erreicht wird dies bei mit sehr geringem definiertem Abstand distanzierten Gefäßwandungsteilen, wie Platten oder dergleichen, aus Glas, Keramik, Kunststoff, Metall oder dergleichen, insbesondere für Flüssigkristall-Anzeigeschirme aus Glas, zwischen denen insbesondere in diskreten Bereichen eine Vielzahl Distanzierungselemente angeordnet (eingefügt) sind, nach der Erfindung dadurch, daß zumindest auf einer der Platten als Distanzierungselemente (Distanzelemente) durch Schmelzfluß gebildete kraterartige Materialaufwürfe von der Höhe des einzuhaltenden Distanzmaßes mit im Vergleich zu diesem Maß sehr großen gegenseitigen Abstand angeordnet sind, die die aufeinandergelegten Platten gegeneinander distanzieren.This is achieved in the case of vessel wall parts, such as plates or the like, which are spaced apart at a very small defined distance. Made of glass, ceramic, plastic, metal or the like, in particular for liquid crystal display screens made of glass, between which a large number of spacing elements are arranged, in particular in discrete areas (inserted) are, according to the invention, in that at least one of the plates as spacer elements (spacer elements) Crater-like material bulges formed by melt flow from the height of the distance to be maintained are arranged with in comparison to this measure very large mutual spacing, which are placed on top of one another Separate the plates from each other.

Dabei werden die als Distanzierungselemente dienenden kraterartigen Materialaufwürfe durch eine sehr kurzzeitige, nämlich getastete, gebündelte Laserstrahlung, z.B. eines CCU-Lasers, hergestellt.The crater-like material bulges that serve as spacing elements are removed by a very brief, namely keyed, bundled laser radiation, e.g. from a CCU laser.

Als besonders vorteilhafte Anwendung der beschriebenen Maßnahme wird bei einem Flüssigkristall-Anzeigeschirm mit zwei parallel zueinander distanzierten Trägerplatten aus Glas, von denen mindestens eine transparent, beide mit einem Elektrodenmuster auf deren einander zugewandtenA particularly advantageous application of the measure described is with a liquid crystal display screen two parallel spaced-apart support plates made of glass, at least one of which is transparent, both with an electrode pattern on their facing

VPA 9/170/3041 509813/0461VPA 9/170/3041 509813/0461

Flächen versehen und an ihren Randzonen mittels Glaslot bis auf eine gesondert verschlossene Öffnung hermetisch abgedichtet sind, als distanzierende Elemente eine Vielzahl kraterförmiger Materialaufwürfe auf einer der Platten, z.B. auf der unteren Trägerplatte, vor dem Aufdrucken des Glaslot-Rahmens, in dessen Bereich oder dessen unmittelbaren Bereich angebracht.The surfaces are provided and hermetically sealed at their edge zones by means of glass solder except for a separately sealed opening are sealed, a large number of crater-shaped material bulges on one of the spacing elements Plates, e.g. on the lower carrier plate, before printing the glass solder frame, in its area or its immediate area attached.

Nähere Einzelheiten sollen anhand eines in der Zeichnung rein schematisch dargestellten Ausführungsbeispiels erläutert werden. Teile, die nicht unbedingt zum Verständnis der Erfindung beitragen, sind darin unbezeichnet oder fortgelassen.Further details should be based on one in the drawing be explained purely schematically illustrated embodiment. Parts that are not essential for understanding Contribute to the invention are not designated or omitted.

In den Figuren 1 und 2 sind als eines der möglichen Ausführungsbeispiele von einem Flüssigkristall-Anzeigeschirm im Schnitt bzw. in Ansicht die beiden zu distanzierenden Trägerplatten mit 1 als die obere und mit 2 als die untere Glasplatte bezeichnet. In der unteren Glasplatte 2 sind als Distanzelemente zum Beispiel in einer Reihe mit relativ großem gegenseitigen Abstand mit einem gebündelten Laserstrahl unter Schmelzflußbildung derart Vertiefungen mit jeweils Krater eingefügt, daß jeweils am Rande Materialaufwürfe 4 mit recht gleichmäßiger Höhe gebildet sind. Die Höhe eines solchen,als Distanzelement dienenden Materialaufwurfs wird bei vorgegebenem Plattenmaterial, z.B. Glas, wesentlich bestimmt durch das für den Laserstrahl gewählte Tastverhältnis. Durch das ermittelte Tastverhältnis wird dann gleichzeitig die Vorschubgeschwindigkeit der betreffenden Glasplatte unterhalb der Laserstrahl-Bohr-Vorrichtung festgelegt.In Figures 1 and 2 are one of the possible embodiments of a liquid crystal display screen in section or in view of the two to be distanced Carrier plates with 1 as the upper and with 2 as the lower glass plate. In the lower glass plate 2 are as spacer elements, for example, in a row with a relatively large mutual spacing with a bundled one Laser beam with melt flow formation in such a way inserted depressions, each with craters, that in each case material bulges at the edge 4 are formed with a fairly uniform height. The height of such a material throw-up, serving as a spacer element, is determined for a given panel material, e.g. glass, largely determined by the pulse duty factor selected for the laser beam. Through the determined The duty cycle is then simultaneously the feed rate of the glass plate in question below the Laser beam drilling jig set.

Mit der beschriebenen Maßnahme können wirklich reproduzierbar Distanzierungen von z.B. ca. 10/um Abstand realisiert werden.With the measure described, distances of e.g. approx. 10 / µm can be achieved in a really reproducible manner will.

2 Figuren 509813/04612 figures 509813/0461

3 Patentansprüche3 claims

VPA 9/17Ü/3041 VPA 9 / 17Ü / 30 41

Claims (3)

PatentansprücheClaims Mit sehr geringem, definiertem Abstand distanzierte Gefäßwandungsteile, wie Platten oder dergleichen, aus Glas, Keramik, Kunststoff, Metall oder dergleichen, insbesondere für Flüssigkristall-Anzeigeschirme aus Glas, zwischen denen insbesondere in diskreten Bereichen eine Vielzahl Distanzierungselemente angeordnet (eingefügt) sind, dadurch gekennzeichnet, daß zumindest auf einer der Platten (1, 2) als Distanzierungselemente (Distanzelemente) durch Schmelzfluß gebildete kraterartige Materialaufwürfe (4) von der Höhe des einzuhaltenden Distanzmaßes mit im Vergleich zu diesem Maß sehr großen gegenseitigen Abständen angeordnet sind, die die aufeinandergelegten Platten (1, 2) gegeneinander distanzieren.Vessel wall parts spaced at a very small, defined distance, such as plates or the like, made of glass, ceramic, plastic, metal or the like, in particular for liquid crystal display screens made of glass, between which there is a large number, especially in discrete areas Spacer elements are arranged (inserted), characterized in that at least formed on one of the plates (1, 2) as spacer elements (spacer elements) by melt flow Crater-like material bulges (4) from the height of the distance dimension to be maintained with in comparison to this dimension very large mutual distances are arranged, which the superimposed plates (1, 2) against each other distance. 2. Distanzierte Wandungsteile nach Patentanspruch 1, dadurch gekennzeichnet, daß die Distanzelemente (4) durch eine sehr kurzzeitige (getastete), gebündelte Laserstrahlung, z.B. eines COp-Lasers, kraterartig gebildete Materialaufwürfe sind.2. distanced wall parts according to claim 1, characterized in that the Spacer elements (4) due to a very brief (scanned), bundled laser radiation, e.g. from a COp laser, crater-like are formed material deposits. 3. Flüssigkristall-Anzeigeschirm mit zwei parallel zueinander distanzierten Trägerplatten aus Glas nach Patentanspruch und 2, von denen mindestens eine transparent, beide mit einem Elektrodenmuster auf deren einander zugewandten Flächen versehen und an deren Randzonen mittels Glaslot bis auf eine gesondert verschlossene Öffnung hermetisch abgedichtet sind, dadurch gekennzeichnet daß eine Vielzahl kraterförmiger Materialaufwürfe als distanzierende Elemente zum Beispiel auf der unteren3. Liquid crystal display screen with two parallel spaced support plates made of glass according to claim and 2, at least one of which is transparent, both with an electrode pattern on their facing each other Provided surfaces and at their edge zones hermetically using glass solder except for a separately sealed opening are sealed, characterized in that a large number of crater-shaped material bulges than distancing elements for example on the lower one 509813/0461 VPA 9/170/3041 - 5 - 509813/0461 VPA 9/170/3041 - 5 - _ 5 —_ 5 - Trägerplatte vor dem Aufdrucken des Glaslot-Rahmens in dessen Bereich oder dessen unmittelbaren Bereich angebracht sind.Carrier plate attached before printing the glass solder frame in its area or its immediate area are. VPA 9/170/3041 509813/0461VPA 9/170/3041 50 9813/0461 -fr-Leerseite-fr-blank page
DE19732344050 1973-08-31 Vessel with two wall plates spaced a very short, defined distance from one another Expired DE2344050C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732344050 DE2344050C3 (en) 1973-08-31 Vessel with two wall plates spaced a very short, defined distance from one another

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732344050 DE2344050C3 (en) 1973-08-31 Vessel with two wall plates spaced a very short, defined distance from one another

Publications (3)

Publication Number Publication Date
DE2344050A1 true DE2344050A1 (en) 1975-03-27
DE2344050B2 DE2344050B2 (en) 1975-10-09
DE2344050C3 DE2344050C3 (en) 1976-05-26

Family

ID=

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0690028A1 (en) * 1994-06-29 1996-01-03 Machida Endoscope Co., Ltd Process for producing micro lens
EP0829746A2 (en) * 1996-09-11 1998-03-18 Machida Endoscope Co., Ltd Liquid crystal display unit and method for manufacturing the same
EP1271224A1 (en) * 2001-06-29 2003-01-02 Data Storage Institute Method of manufacturing spacers for flat panel displays

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0690028A1 (en) * 1994-06-29 1996-01-03 Machida Endoscope Co., Ltd Process for producing micro lens
US5665136A (en) * 1994-06-29 1997-09-09 Machida Endoscope Co., Ltd. Process for producing micro lenses using a laser beam
EP0829746A2 (en) * 1996-09-11 1998-03-18 Machida Endoscope Co., Ltd Liquid crystal display unit and method for manufacturing the same
EP0829746A3 (en) * 1996-09-11 1998-11-11 Machida Endoscope Co., Ltd Liquid crystal display unit and method for manufacturing the same
EP1271224A1 (en) * 2001-06-29 2003-01-02 Data Storage Institute Method of manufacturing spacers for flat panel displays
SG108260A1 (en) * 2001-06-29 2005-01-28 Inst Data Storage Flat panel display and method of manufacture

Also Published As

Publication number Publication date
DE2344050B2 (en) 1975-10-09

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee