GB2124009A - Indicating devices having a visual display - Google Patents

Indicating devices having a visual display Download PDF

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Publication number
GB2124009A
GB2124009A GB08312114A GB8312114A GB2124009A GB 2124009 A GB2124009 A GB 2124009A GB 08312114 A GB08312114 A GB 08312114A GB 8312114 A GB8312114 A GB 8312114A GB 2124009 A GB2124009 A GB 2124009A
Authority
GB
United Kingdom
Prior art keywords
lcd
indicating
power supply
integrated
chamber
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
GB08312114A
Other versions
GB8312114D0 (en
GB2124009B (en
Inventor
Peter M Knoll
Winfried H Konig
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.)
Robert Bosch GmbH
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 GB8312114D0 publication Critical patent/GB8312114D0/en
Publication of GB2124009A publication Critical patent/GB2124009A/en
Application granted granted Critical
Publication of GB2124009B publication Critical patent/GB2124009B/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K37/00—Dashboards
    • 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
    • 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

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

Abstract

A visual display has a current supply formed integrally therewith. The current supply comprises electrochemical cells 7, 8 whose electrodes 10, 11 are disposed in sealed chambers receiving the electrolyte. Touch-switches 12, 13 may be provided for an LCD display for use in the operation of a motor vehicle. Sealing compound 17 prevents tampering. <IMAGE>

Description

SPECIFICATION Improvements in or relating to indicating devices having a visual display The present invention relates to indicating devices having a visual display, particularly for indicating operating variables occurring during operation of a motor vehicle, by means of a visual display, preferably an LCD.
According to the present invention an indicating device, particularly for indicating operating variables occurring during operation of a motor vehicle, by means of visual displays, has a power supply integrated in the device.
Preferably the visual displays are LCDs.
An indicating device embodying the present invention can have the advantage that few if any conductive connections have to be made outside the device. This can promote reliability and also prevents unauthorised disconnection of the power supply. It can also safeguard data in any control and/or data processing which may be integrated in the device.
The invention will be further described by way of example with reference to the accompanying drawings, in which: Figure 1 is a diagrammatic illustration of a front view of an indicating device according to one embodiment of the invention, and Figure 2 is a diagrammatic illustration of a transverse section of the indicating device in Fig. 1.
The indicating device illustrated in the drawings comprises a visual display and is provided with an integral power supply which permits operation independently of any external electrical system. A reception space is provided in the device for control and data processing modules and for the visual display itself.
Two glass plates 1 and 2 are provided in the illustrated embodiment, which is an LCD, and are spaced apart at a fixed distance from one another by means of three spacers 3, 4 and 5. The spacers define three chambers 6, 7 and 8. The largest of these chambers is designated 6 and contains an optically active substance which forms the actual LCD. An electrochemical energy store, indicated by the two pairs of plates 10, 11, is located in each of the separate chambers 7 and 8 located adjacent the chamber 6. These energy stores can be buffered by photoelements (not illustrated in the drawings) which are also integrated in the LCD chamber 6. Re-charging of the energy stores is therefore possible.Two touch switches 1 2 and 1 3 are provided directly above the LCD chamber 6 and their electrical connection leads 14 and 1 5 lead directly into a reception space located above a free fastening surface 16. The reception space can be used for integrated circuits, photoelements, crystals and similar modules and can be covered or sealed by a sealing compound 1 7 in order to prevent tampering. The filling of the energy storage cells 7 and 8 and the mounting of the electrodes 10 and 11 can be readily incorporated in the process for manufacturing the LCD, thus resulting in a considerable saving of costs. The celss 7 and 8 may be filled with liquid electrolyte from an electrolyte pump by first evacuating the cells to 10 ~ ' Torr (13.3Pa).
An additional chamber 21 of larger volume ca be provided behind the LCD chamber 6 by means of a third glass plate 20 indicated by broken lines in Fig. 2.
The arrangement embodying the present invention has the advantage that a separate energy store or power supply can be omitted and that only a few outwardly leading conductive connections, or no outwardly leading conductive connections at all, are required. This results in increased reliability and a saving of costs. The described display indicating device is flat and offers considerable design possibilities. A special advantage is that unauthorised disconnection of the power supply can be prevented, thereby enabling satisfactory safeguarding of data.
1. An indicating device, particularly for indicating operating variables occurring during operation of a motor vehicle, by means of visual displays, in which a power supply is integrated in the display.
2. A device as claimed in claim 1, in which the visual displays are LCDs.
3. A device as claimed in claim 1 or 2, in which control and/or data processing modules are integrated in the device in addition to the modules serving as the power supply.
4. A device as claimed in claim 1, 2 or 3, in which the power supply is an electrochemical energy store.
5. A device as claimed in claim 4, in which at least one photoelement is provided for buffering the energy store and is integrated in an LCD chamber.
6. A device as claimed in any of claims 1 to 5, in which at least one touch switch is disposed on an LCD chamber.
7. A device as claimed in any of claims 1 to 6, in which at least two mutually spaced transparent or translucent plates are provided and are made from an electronically insulating material such as glass.
8. A device as claimed in claim 7, in which at least one spacer is disposed between the plates and subdivides the space between the plates into at least two chambers, one of which chambers contains an optically active substance such as a liquid cyrstal.
9. A device as claimed in claim 8, in which the other one of the two chambers contains an energy store.
10. A device as claimed in claim 9, in
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (11)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Improvements in or relating to indicating devices having a visual display The present invention relates to indicating devices having a visual display, particularly for indicating operating variables occurring during operation of a motor vehicle, by means of a visual display, preferably an LCD. According to the present invention an indicating device, particularly for indicating operating variables occurring during operation of a motor vehicle, by means of visual displays, has a power supply integrated in the device. Preferably the visual displays are LCDs. An indicating device embodying the present invention can have the advantage that few if any conductive connections have to be made outside the device. This can promote reliability and also prevents unauthorised disconnection of the power supply. It can also safeguard data in any control and/or data processing which may be integrated in the device. The invention will be further described by way of example with reference to the accompanying drawings, in which: Figure 1 is a diagrammatic illustration of a front view of an indicating device according to one embodiment of the invention, and Figure 2 is a diagrammatic illustration of a transverse section of the indicating device in Fig. 1. The indicating device illustrated in the drawings comprises a visual display and is provided with an integral power supply which permits operation independently of any external electrical system. A reception space is provided in the device for control and data processing modules and for the visual display itself. Two glass plates 1 and 2 are provided in the illustrated embodiment, which is an LCD, and are spaced apart at a fixed distance from one another by means of three spacers 3, 4 and 5. The spacers define three chambers 6, 7 and 8. The largest of these chambers is designated 6 and contains an optically active substance which forms the actual LCD. An electrochemical energy store, indicated by the two pairs of plates 10, 11, is located in each of the separate chambers 7 and 8 located adjacent the chamber 6. These energy stores can be buffered by photoelements (not illustrated in the drawings) which are also integrated in the LCD chamber 6. Re-charging of the energy stores is therefore possible.Two touch switches 1 2 and 1 3 are provided directly above the LCD chamber 6 and their electrical connection leads 14 and 1 5 lead directly into a reception space located above a free fastening surface 16. The reception space can be used for integrated circuits, photoelements, crystals and similar modules and can be covered or sealed by a sealing compound 1 7 in order to prevent tampering. The filling of the energy storage cells 7 and 8 and the mounting of the electrodes 10 and 11 can be readily incorporated in the process for manufacturing the LCD, thus resulting in a considerable saving of costs. The celss 7 and 8 may be filled with liquid electrolyte from an electrolyte pump by first evacuating the cells to 10 ~ ' Torr (13.3Pa). An additional chamber 21 of larger volume ca be provided behind the LCD chamber 6 by means of a third glass plate 20 indicated by broken lines in Fig. 2. The arrangement embodying the present invention has the advantage that a separate energy store or power supply can be omitted and that only a few outwardly leading conductive connections, or no outwardly leading conductive connections at all, are required. This results in increased reliability and a saving of costs. The described display indicating device is flat and offers considerable design possibilities. A special advantage is that unauthorised disconnection of the power supply can be prevented, thereby enabling satisfactory safeguarding of data. CLAIMS
1. An indicating device, particularly for indicating operating variables occurring during operation of a motor vehicle, by means of visual displays, in which a power supply is integrated in the display.
2. A device as claimed in claim 1, in which the visual displays are LCDs.
3. A device as claimed in claim 1 or 2, in which control and/or data processing modules are integrated in the device in addition to the modules serving as the power supply.
4. A device as claimed in claim 1, 2 or 3, in which the power supply is an electrochemical energy store.
5. A device as claimed in claim 4, in which at least one photoelement is provided for buffering the energy store and is integrated in an LCD chamber.
6. A device as claimed in any of claims 1 to 5, in which at least one touch switch is disposed on an LCD chamber.
7. A device as claimed in any of claims 1 to 6, in which at least two mutually spaced transparent or translucent plates are provided and are made from an electronically insulating material such as glass.
8. A device as claimed in claim 7, in which at least one spacer is disposed between the plates and subdivides the space between the plates into at least two chambers, one of which chambers contains an optically active substance such as a liquid cyrstal.
9. A device as claimed in claim 8, in which the other one of the two chambers contains an energy store.
10. A device as claimed in claim 9, in which a first plate is of smaller area than the other plate, and spacers closely contiguous to one another are provided along the periphery of the first plate, and the cavity enclosed by these spacers is subdivided by at least one additional spacer.
11. An indicating device constructed and arranged substantially as hereinbefore particularly described with reference to and as illustrated in the accompanying drawings.
GB08312114A 1982-07-06 1983-05-04 Indicating devices having a visual display Expired GB2124009B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823225152 DE3225152A1 (en) 1982-07-06 1982-07-06 DISPLAY DEVICE WITH OPTICAL DISPLAY

Publications (3)

Publication Number Publication Date
GB8312114D0 GB8312114D0 (en) 1983-06-08
GB2124009A true GB2124009A (en) 1984-02-08
GB2124009B GB2124009B (en) 1986-01-02

Family

ID=6167697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08312114A Expired GB2124009B (en) 1982-07-06 1983-05-04 Indicating devices having a visual display

Country Status (4)

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DE (1) DE3225152A1 (en)
FR (1) FR2530056A1 (en)
GB (1) GB2124009B (en)
IT (1) IT1170160B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693005B1 (en) * 1992-06-26 1995-03-31 Thomson Lcd Circuit encapsulation and passivation arrangement for flat screens.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1513198A (en) * 1975-12-02 1978-06-07 Suwa Seikosha Kk Electric wristwatch
GB1520193A (en) * 1975-05-07 1978-08-02 Centre Electron Horloger Wrist watch incorporating a thermoelectric generator
GB2004080A (en) * 1977-09-12 1979-03-21 Siemens Ag Electrochemical display device
GB2020863A (en) * 1978-05-10 1979-11-21 Bulova Watch Co Inc Wristwatch with thermoelectric generator
GB1566690A (en) * 1977-06-22 1980-05-08 Suwa Seikosha Kk Timepiece having an alkaline battery
GB1578573A (en) * 1976-06-08 1980-11-05 Citizen Watch Co Ltd Solar cell timepiece
GB1597900A (en) * 1977-05-20 1981-09-16 Citizen Watch Co Ltd Solar cell battery charging control system
US4327511A (en) * 1980-03-24 1982-05-04 Rodriquez Paul R Luminescent alphanumeric modular display

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850518A1 (en) * 1978-11-22 1980-06-26 Rau Swf Autozubehoer DEVICE FOR DISPLAYING MEASURED VALUES

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1520193A (en) * 1975-05-07 1978-08-02 Centre Electron Horloger Wrist watch incorporating a thermoelectric generator
GB1513198A (en) * 1975-12-02 1978-06-07 Suwa Seikosha Kk Electric wristwatch
GB1578573A (en) * 1976-06-08 1980-11-05 Citizen Watch Co Ltd Solar cell timepiece
GB1597900A (en) * 1977-05-20 1981-09-16 Citizen Watch Co Ltd Solar cell battery charging control system
GB1566690A (en) * 1977-06-22 1980-05-08 Suwa Seikosha Kk Timepiece having an alkaline battery
GB2004080A (en) * 1977-09-12 1979-03-21 Siemens Ag Electrochemical display device
GB2020863A (en) * 1978-05-10 1979-11-21 Bulova Watch Co Inc Wristwatch with thermoelectric generator
US4327511A (en) * 1980-03-24 1982-05-04 Rodriquez Paul R Luminescent alphanumeric modular display

Also Published As

Publication number Publication date
FR2530056A1 (en) 1984-01-13
GB8312114D0 (en) 1983-06-08
IT8321840A0 (en) 1983-06-29
DE3225152A1 (en) 1984-01-12
IT1170160B (en) 1987-06-03
GB2124009B (en) 1986-01-02

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PCNP Patent ceased through non-payment of renewal fee