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WO1987007037A1 - Dispositif pour presenter des informations sur des affichages a cristaux liquides - Google Patents

Dispositif pour presenter des informations sur des affichages a cristaux liquides Download PDF

Info

Publication number
WO1987007037A1
WO1987007037A1 PCT/DE1987/000066 DE8700066W WO8707037A1 WO 1987007037 A1 WO1987007037 A1 WO 1987007037A1 DE 8700066 W DE8700066 W DE 8700066W WO 8707037 A1 WO8707037 A1 WO 8707037A1
Authority
WO
WIPO (PCT)
Prior art keywords
lcd
display device
display elements
driver stages
adjacent
Prior art date
Application number
PCT/DE1987/000066
Other languages
German (de)
English (en)
Inventor
Norbert Stepper
Wolfgang Ziegler
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO1987007037A1 publication Critical patent/WO1987007037A1/fr

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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/325—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor

Definitions

  • the invention relates to a display device for information such as measurement data, fault displays and the like.
  • a display device for information such as measurement data, fault displays and the like.
  • the various LCD panels which are arranged next to one another in a common housing, are provided on each of their longitudinal sides with conductor tracks, which either directly with different LC display elements or via so-called driver stages with the LC display elements are connected. These conductor tracks are contacted by a plug placed on the edge of the LCD panel with a connecting cable which is connected to an electronic control circuit.
  • DE-OS 34 21 921 it is also known to arrange the various displays on a correspondingly large LCD panel.
  • all driver stages FIG. 1
  • an additional microcomputer FIG.
  • the aim of the present solution is to arrange the driver stages for a plurality of LCD panels in such a way that the display area available for the given housing dimensions of the display instrument can be used as optimally as possible.
  • the display device with the characterizing features of the main claim has the advantage that the spatial combination of driver stages of several LCD panels on the edge area of one of these LCD panels improves the utilization of the display area or that the dimensions of the LCD panels are reduced can. Another advantage is that if a defect occurs on one of the LCD panels, the entire LCD display does not have to be replaced. Rather, the individual LCD panels can be checked and replaced if necessary become.
  • the arrangement of the driver stages according to the invention divides the LCD panels into so-called master LCDs and slave LCDs. The master LCD therefore has driver stages for several
  • the functional test can be carried out there by directly applying test voltages to the conductor tracks leading to the display elements in the area of the contact area of the LCD panel.
  • the relevant LCD panels that is to say a master LCD and a slave LCD, are arranged next to one another with their contacting surfaces and are in contact with one another via connecting means.
  • the contact on the contacting surfaces of the LCD panels can be contacted by a commercially available laminated conductive rubber.
  • the ribbon cable can be glued to at least one of the contact surfaces. If necessary, its other end can be detachably contacted to the contacting surface of the other LCD panel via a connector.
  • a particularly space-saving contacting of adjacent LCD panels is possible in that the contacting surfaces of the adjacent LCD panels overlap one another and are connected by an intermediate connecting means, e.g. with a laminated
  • Leitgummi are contacted with each other.
  • a further development of the invention also consists in that the master LCD carrying the driver stages has additional contact surfaces on several sides Contacting adjacent slave LCDs.
  • the driver stages of which are located on the adjacent master LCD, to arrange further display elements on this LCD panel, the driver stages of which, if necessary, with further electronic components in known chip-on -Glass technology are arranged on a sand area of this or another master LCD.
  • an LCD dot matrix can be arranged on an LCD panel next to one or more seven-segment displays, with which numbers, letters, symbols and the like can be displayed via a multiplex control.
  • FIG. 1 shows a display device according to the invention with an LCD panel carrying the driver stages and three adjacent LCD panels without driver stages
  • FIGS. 2 to 5 show different solutions for the electrical connection of two adjacent LCD panels with their contacting surfaces arranged or overlapping one another
  • FIG 6 shows two adjacent LCD panels, in which the driver stages on an LCD panel are assigned to only a part of the display elements of the adjacent LCD panel.
  • the display device according to the invention for information such as measurement data, fault displays and the like, with a plurality of LCD panels combined in one housing, are simplified in FIG Representation shown only four LCD panels 10 to 13.
  • the LCD panels 10 to 13 each carry a number of display elements 14, some of which are only shown on the LCD panels 10 and 11 in the form of seven-segment displays 15.
  • the display elements 14 are connected via driver stages 16 to an electronic control circuit, not shown.
  • the LCD plate 10 is provided at its lower edge region 17, in that the lower substrate plate of the LCD plate 10 projects downward above the substrate plate above, with a contacting surface 18 onto which a connector plug is to be slid, which is not connected via a cable to the Electronic control circuit shown the display device is connected.
  • the driver stages 16 are fastened in a chip-on-glass technique on the lower substrate plate of the LCD plate 10 and contacted with adjacent conductor tracks 19 applied there.
  • the conductor tracks 19 lead both from the contact surface 18 from the lower edge region 17 of the LCD panel to the inputs of the driver stages 16 and from their outputs to the various display elements 14.
  • these driver stages 19 assigned to the display elements 14 of all four LCD panels 10 to 13 are arranged on the lower edge region 17 of the middle LCD panel 10.
  • the electrical connection of the outputs of these driver stages 16 to the display elements 14 on the adjacent LCD plates 11, 12 and 13 is achieved via further contact surfaces 20, 21 and 22 on the LCD plate 10, each with a contact surface 23, 24 and 25 of the adjacent LCD panels 11, 12 and 13 are connected.
  • the lower substrate plates of the LCD plates 10 to 13 are each shortened in the area of the contacting areas 20 to 25, so that the upper substrate plates each protrude beyond the edge of the lower substrate plates.
  • All contact surfaces 23 to 25 of the LCD plates 11, 12 and 13 have interconnects 19 arranged next to one another which - as shown by way of example on the LCD panel 11 - are connected to the display elements 14.
  • the conductor tracks 19 lying next to one another on the contacting areas 20, 21 and 22 of the central LCD panel 10 are, as indicated by dashed lines, each connected to the outputs of the driver stages 16 assigned to them.
  • the latter becomes a master LCD, with which the adjacent LCD panels 11, 12 and 13 are controlled as slave LCDs.
  • the contacting areas 20, 23 or 21, 24 and 22, 25 of the adjacent LCD plates 10 to 13 are contacted with one another via connecting means 27 such that the opposite conductor tracks 19 of the adjacent contacting areas are each electrically connected to one another .
  • the various contacting options are shown in Figures 1 to 5.
  • connection between the master LCD 10 and the slave LCD 11 is represented by a laminated conductive rubber which is known per se 27 performed, which is placed from behind on the contact surfaces 20 and 23.
  • the adjacent LCD plates 10 and 11 with their contacting surfaces 20 and 23 arranged next to one another are electrically connected to one another by a conductive rubber 28, which on its side facing the contacting surfaces 20 and 23 has a layer 28a with electrically conductive tracks running parallel to one another and carries a non-conductive silicone layer 28b on the back.
  • the conductor tracks can also be subsequently laminated onto a silicone rubber.
  • the electrical connection of the adjacent contacting surfaces 20, 23 of adjacent LCD panels 10, 11 takes place a ribbon cable 29, which has adjacent conductor tracks 29a on the side facing the contacting areas 20, 23, which establishes the electrical connection between the conductor tracks of the contacting areas.
  • the ribbon cable 29 can be ironed or glued onto one or both contact surfaces 20, 23 in order to ensure permanent contact.
  • FIG. 4 shows the electrical connection of the contact surfaces 20 and 23 of the two LCD plates 10 and 11 with a ribbon cable 29 which is glued to the contact surface 20 at one end and carries a connector plug 30 at its other end.
  • the connector plug 30 is pushed onto the edge of the lower substrate plate of the LCD plate 11 in a manner known per se, so that it is electrically connected to the conductor tracks 19 of the contact surface 23 with its contact springs 31, which are respectively connected to the conductor tracks 29a.
  • FIG. 5 shows a space-saving contacting of two adjacent LCD plates 10a and 11, in which the contacting areas 20 and 23 to be connected overlap facing one another.
  • a conductive rubber 27 which is electrically conductive throughout its entire thickness and is insulated or conductive in the form of a lamella in its transverse direction.
  • the conductor tracks of the two contacting areas 20 and 23 arranged one above the other are electrically connected to one another via the conductive rubber 27.
  • Permanent contacting can also be achieved here by gluing.
  • a connection means can optionally be dispensed with entirely here.
  • FIG. 6 shows, in a further exemplary embodiment, two LCD panels 50 and 51 arranged next to one another, the right LCD panel 50 being provided with a number of display elements 14 in the form of seven-segment displays 15.
  • the LCD panel 51 In addition to a few seven-segment displays 15, there is also a dot matrix 52 for displaying symbols, images, numbers, letters and the like.
  • driver stages 54 are arranged on the LCD plate 51 on the lower projecting edge 53 of the lower substrate plate which, in multiplex operation, control the various point-shaped display elements in the point matrix 52 in columns and lines.
  • the electronic control circuit is contacted with the driver stages 54 via a contact surface 55 at the lower edge 53 of the LCD panel 50 by attaching a connector.
  • the driver stages 16 assigned to them are in turn arranged on the adjacent LCD panel 50, together with those for the display elements 14 of this LCD panel 50 required driver stages 16 at the lower edge region 17.
  • the driver stages 16 are also electrically connected to the display elements 14 assigned to them on the LCD plate 51 via conductor tracks 19 to the contact surface 20 of this LCD plate 50 from there via a connecting means, for example a conductive rubber 27 to the contact surface 23 of the adjacent LCD panel 51 and finally from there via conductor tracks 19 to the display elements 14 of the LCD panel 51.
  • a connecting means for example a conductive rubber 27 to the contact surface 23 of the adjacent LCD panel 51 and finally from there via conductor tracks 19 to the display elements 14 of the LCD panel 51.
  • the LCD driver stages can be used in different versions for different purposes and with different chip packaging and different assembly and contacting technology, it is possible with the help of the present invention to use different driver types for display devices with several LCD panels and thereby to attach only one driver type to a display panel in order to control display elements on neighboring display panels.

Landscapes

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

Abstract

Un dispositif pour présenter des informations telles que des données de mesure, des indications de pannes et similaires comprend plusieurs plaques d'affichage à cristaux liquides (10 à 13) assemblées dans un logement et des éléments d'affichage (14) connectés par des étages excitateurs (16) à un circuit électronique de commande grâce au fait qu'ils sont pourvus, au moins d'un côté, d'une surface de contact (18). Afin d'obtenir une utilisation optimale des surfaces d'affichage disponibles, les étages excitateurs (16) des éléments d'affichage (14) de plusieurs plaques adjacentes d'affichage à cristaux liquides (11, 12, 13) sont agencés sur la zone marginale (17) d'une des plaques d'affichage à cristaux liquides (10 à 13). Ils sont électriquement connectés à des éléments d'affichage correspondants (14) en ce sens que les éléments d'affichage (14) des plaques d'affichage à cristaux liquides (11, 12, 13) qui ne portent pas les étages excitateurs (16) sont connectées par leur surface de contact (23, 24, 25) avec une surface de contact (20, 21, 22) de la plaque d'affichage à cristaux liquides (10) qui porte les étages excitateurs (16), et à partir de là avec des pistes conductrices (19) de la plaque d'affichage à cristaux liquides (10).
PCT/DE1987/000066 1986-05-07 1987-02-25 Dispositif pour presenter des informations sur des affichages a cristaux liquides WO1987007037A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863615417 DE3615417A1 (de) 1986-05-07 1986-05-07 Anzeigevorrichtung fuer informationen auf lc-display
DEP3615417.2 1986-05-07

Publications (1)

Publication Number Publication Date
WO1987007037A1 true WO1987007037A1 (fr) 1987-11-19

Family

ID=6300327

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1987/000066 WO1987007037A1 (fr) 1986-05-07 1987-02-25 Dispositif pour presenter des informations sur des affichages a cristaux liquides

Country Status (4)

Country Link
EP (1) EP0306479A1 (fr)
JP (1) JPH01502538A (fr)
DE (1) DE3615417A1 (fr)
WO (1) WO1987007037A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001016643A1 (fr) * 1999-08-27 2001-03-08 Siemens Aktiengesellschaft Ensemble connecteur
WO2000077560A3 (fr) * 1999-06-10 2001-10-18 Nokia Mobile Phones Ltd Dispositif afficheur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310112A1 (de) * 1993-03-27 1994-09-29 Licentia Gmbh Flüssigkristall-Anzeigevorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442432A1 (en) * 1978-11-22 1980-06-20 Rau Swf Autozubehoer Multiple function and value indicator for motor vehicle - contains electro=optical cell which is connected to control via semiconducting layer interface
DE3025784A1 (de) * 1980-07-08 1982-02-11 Robert Bosch Gmbh, 7000 Stuttgart Anzeigevorrichtung
US4408836A (en) * 1980-02-28 1983-10-11 Sharp Kabushiki Kaisha Wide screen LCD panel with electrical terminal connections
DE8222120U1 (de) * 1982-08-05 1984-01-19 Robert Bosch Gmbh, 7000 Stuttgart Anzeigegerät für Meßdaten, vorzugsweise in Kraftfahrzeugen
DE3421921A1 (de) * 1983-06-13 1985-01-03 Hitachi, Ltd., Tokio/Tokyo Instrumententafel mit elektronischer sichtanzeige fuer fahrzeuge

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51105292A (ja) * 1975-03-04 1976-09-17 Suwa Seikosha Kk Ekishohyojitai
JPS56136023A (en) * 1980-03-27 1981-10-23 Toshiba Corp Pulse amplifying circuit
JPS5713817A (en) * 1980-06-27 1982-01-23 Morita Mfg Co Ltd Gate driving circuit of electrostatic inductive transistor
JPS6041928B2 (ja) * 1982-05-19 1985-09-19 松下電器産業株式会社 電子ジャ−炊飯器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442432A1 (en) * 1978-11-22 1980-06-20 Rau Swf Autozubehoer Multiple function and value indicator for motor vehicle - contains electro=optical cell which is connected to control via semiconducting layer interface
US4408836A (en) * 1980-02-28 1983-10-11 Sharp Kabushiki Kaisha Wide screen LCD panel with electrical terminal connections
DE3025784A1 (de) * 1980-07-08 1982-02-11 Robert Bosch Gmbh, 7000 Stuttgart Anzeigevorrichtung
DE8222120U1 (de) * 1982-08-05 1984-01-19 Robert Bosch Gmbh, 7000 Stuttgart Anzeigegerät für Meßdaten, vorzugsweise in Kraftfahrzeugen
DE3421921A1 (de) * 1983-06-13 1985-01-03 Hitachi, Ltd., Tokio/Tokyo Instrumententafel mit elektronischer sichtanzeige fuer fahrzeuge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000077560A3 (fr) * 1999-06-10 2001-10-18 Nokia Mobile Phones Ltd Dispositif afficheur
WO2001016643A1 (fr) * 1999-08-27 2001-03-08 Siemens Aktiengesellschaft Ensemble connecteur

Also Published As

Publication number Publication date
JPH01502538A (ja) 1989-08-31
EP0306479A1 (fr) 1989-03-15
DE3615417A1 (de) 1987-11-12

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