GB2094051A - Display device - Google Patents

Display device Download PDF

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Publication number
GB2094051A
GB2094051A GB8106424A GB8106424A GB2094051A GB 2094051 A GB2094051 A GB 2094051A GB 8106424 A GB8106424 A GB 8106424A GB 8106424 A GB8106424 A GB 8106424A GB 2094051 A GB2094051 A GB 2094051A
Authority
GB
United Kingdom
Prior art keywords
display device
display
zones
fluorescent
panel
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.)
Withdrawn
Application number
GB8106424A
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.)
Thorn EMI Ltd
Original Assignee
Thorn EMI Ltd
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 Thorn EMI Ltd filed Critical Thorn EMI Ltd
Priority to GB8106424A priority Critical patent/GB2094051A/en
Publication of GB2094051A publication Critical patent/GB2094051A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
    • B60Q3/14—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting through the surface to be illuminated
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0472—Traffic signs

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Instrument Panels (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The invention provides a display device of simple construction for use an instrument display panel, e.g. on a motor vehicle, or on an indicator for use e.g. in traffic lights, railway stations and airports. A liquid crystal display is driven by known circuitry in combination with a coloured substrate 12 and is illuminated from the rear by an electroluminescent panel 14 in addition to ambient lighting from the front passing through to the rear. Fluorescent paint 13 on a transparent sheet of plastics material 12 provides a multi-coloured substrate resulting in a display device effective in all lighting conditions. In place of the electroluminescent panel a fluorescent or incandescent lamp may be used. <IMAGE>

Description

SPECIFICATION Display device The present invention relates to a display device.
According to the invention, there is provided a display device comprising a liquid crystal display means which is operable to be selectively transparent, fluorescent material positioned to be made selectively visible when viewed from the front of the display means as the display means is made selectively transparent and to be excited by ambient light from the front, and a light source positioned behind the display means and fluorescent material to excite the fluorescent material from behind.
In a preferred embodiment of the invention, the light source comprises an electroluminescent panel.
However, the light source could comprise some other form of light emitter such as an incandescant lamp or a fluorescent lamp.
The fluorescent material may be supported directly by the liquid crystal display means or the light source, but is preferably supported on a support of for example transparent plastics.
The fluorescent material is preferably fluorescent paint.
For a better understanding of the invention, and to show how the same may be carried into effect, reference will now be made by way of example to the accompanying drawing in which.
Figure 1 is an exploded view of a display device in accordance with the invention, and Figure 2 is a perspective view of a modification of the device of Figure 1.
Figure 1 shows by way of example only a display device intended for use in the instrument panel of a car. It comprises a liquid crystal display 1 of known construction, zones 2 to 10 of which are capble of being selectively rendered transparent. Other zones 11 are opaque permanently. As shown in the Figure, the zones are rectangular and include opaque indicia respresenting various monitored functions such as direction indicates (2), ignition (3), main beam (4), oil pressure (5),watertemperature (6) and fuel (7), whilst others are in the form of scales indicating water temperature and amount of fuel (9, 10) and a zone 8 is digital ciock display.
The zones 2 to 10 are made selectively transparent by known driver circuitry (not shown).
Atransparent plastics sheet 12 is arranged at the back of the liquid crystal display (LCD) 1. The sheet has on its face facing the LCD 1 zones 13 (only a representative sample is referenced) of differently coloured fluorescent paint. The zones 13 are in register with the zones 2 to 10 on the liquid crystal display. For instance zones 13-in register with the direction indicator zones 2 and with the clock display 8 are green (G), whilst other zones 13 are orange (0), yellow (Y) and red (R).
The fluorescent paint used may be "DAY-GLO" paint.
As the zones 2 to 10 of the liquid crystal display 1 are selectively made transparent, the coloured zones 13 on the sheet 12 become visible from the front of the display as they are excited by ambient light through the transparent zones of the display 1.
An electroluminescent panel 14 is arranged at the back of the plastics sheet 12 by suitable adhesive to excite the fluorescent paint from behind. The fluorescent paint allows light re-emitted by it from the back light panel 14 to penetrate to the front without excessive loss of colour.
The plastics sheet 12 is preferably sandwiched between the LCD 1 and the panel 14, the sheet, LCD and panel being tightly held together by a frame (not shown). It is possible to fix the sheet 12 to the LCD with adhesive and fix the panel 14 to the sheet 12 with adhesive but this might impair the display.
The electroluminescent panel 14 may be of the type energised with A.C. or of the type energised with D.C. The panel 14 may have any of the normal forms of construction, e.g. vitreous enamelled or ceramic construction, or plastic or organic form.
As an alternative to an electroluminescent panel 14, a light source as shown in Figure 2 may be used.
Such a light source comprises a diffusing plate 15 to be fixed to the plastics sheet 12, and a lamp 16, e.g.
an incandescent lamp or a fluorescent lamp, spaced from the plate 15. The electroluminescent panel 14 is preferred for vehicle instrument panels however as it produces a thinner, more compact display device.
Various modifications to the described display device may be made. For example, the coloured zones 13 may in principle be painted directly onto the liquid crystal display 1 rather than supported on a separate sheet 12 although in practice there could be difficulties in screening, or painted onto the electroluminescent panel 14 or onto the diffusing plate 15, although there could be a loss in efficiency.
Although the invention has been described in relation to an instrument panel display for a car, it is applicable also to destination boards in railway stations and airports, and to traffic signs for example. In general, the invention is useful where ambient light conditions may vary from full daylight to complete darkness.
CLAIMS (filed on 12th Feb 1982) 1. A display device comprising a liquid crystal display which is operable to be selectively transparent, fluorescent material positioned to be made selectively visible when viewed from the front of the display as the display is made selectively transparent and to be excited by ambient light from the front, and a light source positioned behind the display and fluorescent material to excite the fluorescent material from behind.
2. A display device according to Claim 1 wherein the fluorescent material is supported on a support made of transparent plastics material.
3. A display device according to Claim 2 wherein the fluorescent material is applied to the plastics support material in the form of fluorescent paint.
4. A display device according to Claim 1 wherein the fluorescent material is fluorescent paint applied directly to the liquid crystal display.
5. A display device according to any preceding claim wherein the light source is an electroluminescent panel.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (11)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Display device The present invention relates to a display device. According to the invention, there is provided a display device comprising a liquid crystal display means which is operable to be selectively transparent, fluorescent material positioned to be made selectively visible when viewed from the front of the display means as the display means is made selectively transparent and to be excited by ambient light from the front, and a light source positioned behind the display means and fluorescent material to excite the fluorescent material from behind. In a preferred embodiment of the invention, the light source comprises an electroluminescent panel. However, the light source could comprise some other form of light emitter such as an incandescant lamp or a fluorescent lamp. The fluorescent material may be supported directly by the liquid crystal display means or the light source, but is preferably supported on a support of for example transparent plastics. The fluorescent material is preferably fluorescent paint. For a better understanding of the invention, and to show how the same may be carried into effect, reference will now be made by way of example to the accompanying drawing in which. Figure 1 is an exploded view of a display device in accordance with the invention, and Figure 2 is a perspective view of a modification of the device of Figure 1. Figure 1 shows by way of example only a display device intended for use in the instrument panel of a car. It comprises a liquid crystal display 1 of known construction, zones 2 to 10 of which are capble of being selectively rendered transparent. Other zones 11 are opaque permanently. As shown in the Figure, the zones are rectangular and include opaque indicia respresenting various monitored functions such as direction indicates (2), ignition (3), main beam (4), oil pressure (5),watertemperature (6) and fuel (7), whilst others are in the form of scales indicating water temperature and amount of fuel (9, 10) and a zone 8 is digital ciock display. The zones 2 to 10 are made selectively transparent by known driver circuitry (not shown). Atransparent plastics sheet 12 is arranged at the back of the liquid crystal display (LCD) 1. The sheet has on its face facing the LCD 1 zones 13 (only a representative sample is referenced) of differently coloured fluorescent paint. The zones 13 are in register with the zones 2 to 10 on the liquid crystal display. For instance zones 13-in register with the direction indicator zones 2 and with the clock display 8 are green (G), whilst other zones 13 are orange (0), yellow (Y) and red (R). The fluorescent paint used may be "DAY-GLO" paint. As the zones 2 to 10 of the liquid crystal display 1 are selectively made transparent, the coloured zones 13 on the sheet 12 become visible from the front of the display as they are excited by ambient light through the transparent zones of the display 1. An electroluminescent panel 14 is arranged at the back of the plastics sheet 12 by suitable adhesive to excite the fluorescent paint from behind. The fluorescent paint allows light re-emitted by it from the back light panel 14 to penetrate to the front without excessive loss of colour. The plastics sheet 12 is preferably sandwiched between the LCD 1 and the panel 14, the sheet, LCD and panel being tightly held together by a frame (not shown). It is possible to fix the sheet 12 to the LCD with adhesive and fix the panel 14 to the sheet 12 with adhesive but this might impair the display. The electroluminescent panel 14 may be of the type energised with A.C. or of the type energised with D.C. The panel 14 may have any of the normal forms of construction, e.g. vitreous enamelled or ceramic construction, or plastic or organic form. As an alternative to an electroluminescent panel 14, a light source as shown in Figure 2 may be used. Such a light source comprises a diffusing plate 15 to be fixed to the plastics sheet 12, and a lamp 16, e.g. an incandescent lamp or a fluorescent lamp, spaced from the plate 15. The electroluminescent panel 14 is preferred for vehicle instrument panels however as it produces a thinner, more compact display device. Various modifications to the described display device may be made. For example, the coloured zones 13 may in principle be painted directly onto the liquid crystal display 1 rather than supported on a separate sheet 12 although in practice there could be difficulties in screening, or painted onto the electroluminescent panel 14 or onto the diffusing plate 15, although there could be a loss in efficiency. Although the invention has been described in relation to an instrument panel display for a car, it is applicable also to destination boards in railway stations and airports, and to traffic signs for example. In general, the invention is useful where ambient light conditions may vary from full daylight to complete darkness. CLAIMS (filed on 12th Feb 1982) 1. A display device comprising a liquid crystal display which is operable to be selectively transparent, fluorescent material positioned to be made selectively visible when viewed from the front of the display as the display is made selectively transparent and to be excited by ambient light from the front, and a light source positioned behind the display and fluorescent material to excite the fluorescent material from behind. 2. A display device according to Claim 1 wherein the fluorescent material is supported on a support made of transparent plastics material. 3. A display device according to Claim 2 wherein the fluorescent material is applied to the plastics support material in the form of fluorescent paint. 4. A display device according to Claim 1 wherein the fluorescent material is fluorescent paint applied directly to the liquid crystal display. 5. A display device according to any preceding claim wherein the light source is an electroluminescent panel. 6. A display device according to any of claims 1-4 wherein the light source is an incandescent lamp. 7. A display device according to any of claims 1-4 wherein the light source is an fluorescent lamp. 8. A display device substantially as herein described with reference to the accompanying drawings. New claims or amendments to claims filed on 10th June1982 Superseded claims 1 to 8 New or amended claims: CLAIMS
1. A display device comprising a liquid crystal display means which is operable to be selectively transparent, fluorescent material positioned to be made selectively visible when viewed from the front of the display means as the display means is made selectively transparent and to be excited by embient light from the front, and a light source positioned behind the display means and fluorescent material to excite the fluorescent material from behind, said display device further comprising a carrier for the fluorescent material on which the fluorescent mate rial is deposited selectively to provide a predeter mined coloured display.
2. A display device according to Claim 1 wherein the predetermined coloured display comprises zones of different colours.
3. A display device according to Claim 2 wherein the zones of different colours comprises areas of fluorescent paint.
4. A display device according to Claim 2 wherein the zones of different colours are produced by screen printing.
5. A display device according to Claim 1 wherein the carrier comprises a sheet of transparent plastics material.
6. A display device according to Claim 1 wherein the carrier comprises a face of the liquid crystal display means.
7. A display device according to Claim 1 wherein the light source comprises an electroluminescent panel.
8. A display device according to Claim 7 wherein the carrier comprises a face of the electroluminescent panel.
9. A display device according to Claim 7 wherein the electroluminescent panel is of ceramic construction.
10. A display device according to any previous claim forming a display panel for a motor car, said display panel including zones of predetermined different shape and colours depicting monitored functions such as direction indicators, ignition, main beam, oil pressure and fuel, the different coloured zones comprising areas of different coloured fluorns cent material deposited on the outside surface of a sheet of transparent plastics material.
11. A display device substantially as described herein and with reference to Figure 1 of the accompanying drawings.
GB8106424A 1981-02-28 1981-02-28 Display device Withdrawn GB2094051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8106424A GB2094051A (en) 1981-02-28 1981-02-28 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8106424A GB2094051A (en) 1981-02-28 1981-02-28 Display device

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3301914A1 (en) * 1983-01-21 1984-07-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Liquid crystal display device
DE3310444A1 (en) * 1983-03-23 1984-10-04 Borg Instruments GmbH, 7537 Remchingen Multicoloured liquid crystal display device
DE3501006A1 (en) * 1984-01-13 1985-11-07 Ricoh Co., Ltd., Tokio/Tokyo LIQUID CRYSTAL COLOR INDICATOR
US4630894A (en) * 1983-03-23 1986-12-23 Borg Instruments Gmbh Multi-colored liquid crystal display with color transflector and color filter
DE3233699C2 (en) * 1981-02-03 1987-04-23 Mitsubishi Denki K.K., Tokio/Tokyo Liquid crystal display device
EP0240345A2 (en) * 1986-04-04 1987-10-07 Sherwood Medical Company Light modulating display member
DE3627697A1 (en) * 1986-08-14 1988-02-25 Bosch Gmbh Robert DISPLAY DEVICE WITH LIQUID CRYSTAL CELL, PREFERABLY FOR MOTOR VEHICLES
FR2651357A1 (en) * 1989-08-28 1991-03-01 Peugeot INFORMATION DISPLAY SYSTEM WITHIN A MOTOR VEHICLE FOR THE USE OF THE DRIVER OF THE VEHICLE.
EP0541371A1 (en) * 1991-11-05 1993-05-12 Yoshimasa Wakatake Display panel for daylight and artificial illumination with shaped substrate, colour filter and reflection film
EP0541370A1 (en) * 1991-11-05 1993-05-12 Yoshimasa Wakatake Display panel for daylight and artificial illumination with shaped colour filter and reflection film
WO1994000794A1 (en) * 1992-06-25 1994-01-06 Allied-Signal Inc. Transmissive display having a controlled spectral output
EP0692406A1 (en) * 1994-07-05 1996-01-17 Ford Motor Company Translucent fluorescent filter for display panels
US5586879A (en) * 1994-07-05 1996-12-24 Ford Motor Company Fluorescent electroluminescent lamp
EP0780815A1 (en) * 1995-12-22 1997-06-25 Ncr International Inc. Indicator device
DE19621919A1 (en) * 1996-05-31 1997-12-04 Hella Kg Hueck & Co Display device for motor vehicles
FR2753151A1 (en) * 1996-09-10 1998-03-13 Magneti Marelli France DASHBOARD COMPRISING IMPROVED LIGHTING MEANS
FR2753150A1 (en) * 1996-09-10 1998-03-13 Magneti Marelli France IMPROVED LIGHTING MEANS FOR MOTOR VEHICLE DASHBOARD
EP0890866A2 (en) * 1997-06-09 1999-01-13 Seiko Epson Corporation Display device and electronic watch
FR2779694A1 (en) * 1998-06-10 1999-12-17 Sagem Vehicle dashboard dial illumination assembly
EP1750169A3 (en) * 2005-08-03 2007-03-14 Delphi Technologies, Inc. Liquid crystal display with differently-colored localized display areas
EP1918767A1 (en) * 2005-08-04 2008-05-07 Nissan Motor Light Truck Co., Ltd Liquid crystal display device and information display device for vehicle

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3233699C2 (en) * 1981-02-03 1987-04-23 Mitsubishi Denki K.K., Tokio/Tokyo Liquid crystal display device
DE3301914A1 (en) * 1983-01-21 1984-07-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Liquid crystal display device
DE3310444A1 (en) * 1983-03-23 1984-10-04 Borg Instruments GmbH, 7537 Remchingen Multicoloured liquid crystal display device
US4630894A (en) * 1983-03-23 1986-12-23 Borg Instruments Gmbh Multi-colored liquid crystal display with color transflector and color filter
DE3501006A1 (en) * 1984-01-13 1985-11-07 Ricoh Co., Ltd., Tokio/Tokyo LIQUID CRYSTAL COLOR INDICATOR
EP0240345A2 (en) * 1986-04-04 1987-10-07 Sherwood Medical Company Light modulating display member
EP0240345A3 (en) * 1986-04-04 1989-06-21 Sherwood Medical Company Light modulating display member
DE3627697A1 (en) * 1986-08-14 1988-02-25 Bosch Gmbh Robert DISPLAY DEVICE WITH LIQUID CRYSTAL CELL, PREFERABLY FOR MOTOR VEHICLES
FR2651357A1 (en) * 1989-08-28 1991-03-01 Peugeot INFORMATION DISPLAY SYSTEM WITHIN A MOTOR VEHICLE FOR THE USE OF THE DRIVER OF THE VEHICLE.
EP0420708A1 (en) * 1989-08-28 1991-04-03 Automobiles Peugeot Driver's information display system at the interior of a car
EP0541371A1 (en) * 1991-11-05 1993-05-12 Yoshimasa Wakatake Display panel for daylight and artificial illumination with shaped substrate, colour filter and reflection film
EP0541370A1 (en) * 1991-11-05 1993-05-12 Yoshimasa Wakatake Display panel for daylight and artificial illumination with shaped colour filter and reflection film
WO1994000794A1 (en) * 1992-06-25 1994-01-06 Allied-Signal Inc. Transmissive display having a controlled spectral output
EP0692406A1 (en) * 1994-07-05 1996-01-17 Ford Motor Company Translucent fluorescent filter for display panels
US5586879A (en) * 1994-07-05 1996-12-24 Ford Motor Company Fluorescent electroluminescent lamp
EP0780815A1 (en) * 1995-12-22 1997-06-25 Ncr International Inc. Indicator device
DE19621919A1 (en) * 1996-05-31 1997-12-04 Hella Kg Hueck & Co Display device for motor vehicles
WO1998010956A1 (en) * 1996-09-10 1998-03-19 Magneti Marelli France Improved lighting means for motor vehicle dashboard
FR2753150A1 (en) * 1996-09-10 1998-03-13 Magneti Marelli France IMPROVED LIGHTING MEANS FOR MOTOR VEHICLE DASHBOARD
FR2753151A1 (en) * 1996-09-10 1998-03-13 Magneti Marelli France DASHBOARD COMPRISING IMPROVED LIGHTING MEANS
WO1998010957A1 (en) * 1996-09-10 1998-03-19 Magneti Marelli France Dashboard with improved lighting means
EP0890866A2 (en) * 1997-06-09 1999-01-13 Seiko Epson Corporation Display device and electronic watch
EP0890866A3 (en) * 1997-06-09 2000-01-19 Seiko Epson Corporation Display device and electronic watch
FR2779694A1 (en) * 1998-06-10 1999-12-17 Sagem Vehicle dashboard dial illumination assembly
EP1750169A3 (en) * 2005-08-03 2007-03-14 Delphi Technologies, Inc. Liquid crystal display with differently-colored localized display areas
EP1918767A1 (en) * 2005-08-04 2008-05-07 Nissan Motor Light Truck Co., Ltd Liquid crystal display device and information display device for vehicle
EP1918767A4 (en) * 2005-08-04 2009-05-27 Nissan Motor Light Truck Co Liquid crystal display device and information display device for vehicle

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