WO2000018609A1 - Beleuchtbare anzeigeskalenvorrichtung - Google Patents
Beleuchtbare anzeigeskalenvorrichtung Download PDFInfo
- Publication number
- WO2000018609A1 WO2000018609A1 PCT/DE1999/001798 DE9901798W WO0018609A1 WO 2000018609 A1 WO2000018609 A1 WO 2000018609A1 DE 9901798 W DE9901798 W DE 9901798W WO 0018609 A1 WO0018609 A1 WO 0018609A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- display scale
- light
- light source
- illuminable
- source device
- Prior art date
Links
- 238000000149 argon plasma sintering Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 description 13
- 230000018109 developmental process Effects 0.000 description 13
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 230000010287 polarization Effects 0.000 description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/28—Structurally-combined illuminating devices
-
- 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
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
-
- 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
-
- 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
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
- B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
-
- 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
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
-
- 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
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
- B60K2360/34—Backlit symbols
-
- 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
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
- B60K2360/349—Adjustment of brightness
Definitions
- the present invention relates to an illuminable display scale device, and in particular to an illuminable display scale device for an instrument cluster of a motor vehicle, with a dial, which has a first illuminable display scale in a first area, a second illuminable display scale in a second area and a third illuminable display scale in one has third area.
- FIG. 2 shows a known illuminable display scale device for an instrument cluster of a motor vehicle in a top view
- FIG. 3 shows the known illuminable display scale device according to FIG. 2 in cross section.
- 1 denotes a first illuminated display scale in the form of a km / h scale, 2 a second illuminated display scale.
- right display scale in the form of a tempo scale 3 a third illuminated display scale in the form of an mph scale, L ⁇ -L 3 light beams, 4 a system carrier, 5 a light disk or diffuser, ⁇ a liquid crystal display, 7 a cold cathode fluorescent lamp, 8 a dial and 9 polarization filters.
- the cruise control segments lying between these two scales must be able to be switched selectively between illuminated and non-illuminated.
- the cold cathode fluorescent lamp 7 is located under the light plate 5 with the liquid crystal display 6 above it, the latter being locally controllable in the region of the cruise control scale.
- this cold cathode fluorescent lamp 7 illuminates all three display scales 1, 2 and 3, as illustrated by the light beams L x , L 2 , and L 3 , which run through corresponding transparent or translucent openings in the dial 8 to the viewer.
- the two polarization filters 9 are located in the region of the cruise control scale 2 not activated state of the liquid crystal display 6, no light beam L 2 reaches the viewer through the cruise control scale 2, the latter thus appears dark in the relevant display segment.
- a selective control of individual areas of the liquid crystal display 6 in accordance with the cruise control display segments enables the incident light beam L 2 in the area of the liquid crystal display 6 to change its polarization and thus pass through the crossed polarization filters 9, so that the cruise control scale 2 appears bright in the relevant display segment .
- the shape of the liquid crystal display 6 has to be adapted to the shape of the cruise control scale 2 in the form of the cruise control scale 2 (in the example shown, horseshoe shape), and therefore sensitive, complex and expensive to produce and complicated, has turned out to be disadvantageous in the above known illuminable display scale device - and can be installed.
- the illuminable display scale device with the features of claim 1 has the advantage over the known approaches that the previously used, complicated, for example semicircular, liquid crystal display 6 for light control of the telematics display segments is eliminated and due to a simple and 00/18609 - 4 -
- a light guide device is provided between the first and second light source devices on the one hand and the dial on the other hand, which splits the light from the first light source device or cold cathode fluorescent lamp into the first and third areas, which are passed through the dark, scatter-free second area are separated.
- This second area corresponding to the second display scale can be used for displaying information with the second light source device, which is decoupled from the first light source device.
- the second illuminable display scale is arranged between the first illuminable display scale and the third illuminable display scale, and all three display scales are essentially concentric.
- the first light source device is a cold cathode fluorescent lamp.
- the second light source device is an LED arrangement. This can be easily controlled in order to selectively illuminate display segments of the second display scale.
- the first illuminable display scale is arranged essentially in front of the first light source device and the third illuminable display scale is offset to the side.
- the first light source device has a torus geometry, the cylinder axis being arranged essentially perpendicular to the viewing direction, and the light guide device has a corresponding semicircular first cutout adjacent to the first light source device adjacent to the first light source device. This symmetry enables a relatively simple design of the light guide device.
- the light guide device has a triangular second cutout adjacent to the dial.
- the light guide thus has an edge that prevents light rays of the first light source device can directly reach the second display scale.
- the light guide device has essentially plane-parallel surfaces in the second region. On the one hand, this prevents coupling of light from the first light source device into the second display scale and, on the other hand, prevents coupling of light from the second light source device into the first or third display scale.
- the light guide device has a beveled area in the third area for decoupling the light beams in order to illuminate the third illuminable display scale.
- This area which is expediently stepped, ensures that the light is completely decoupled at this point into the third display scale.
- a system support for carrying the dial and the light guide device is provided.
- the system carrier in the first area serves as a reflector for the first light source device.
- the system carrier has a light shaft for the in the second area 00/18609 - 7 -
- the light guide device has a surface which is inclined in such a way that incident rays are either transmitted to the first display scale or are deflected by total reflection in such a way that they are again totally reflected in the second area and thus do not illuminate the second display scale.
- FIG. 1 shows an embodiment of the illuminable display scale device according to the present invention in cross section. 00/18609 _ o _
- FIG. 2 shows a known illuminable display scale device for an instrument cluster of a motor vehicle in a top view
- Fig. 3 shows the known illuminable display scale device according to FIG. 2 in cross section.
- Fig. 1 shows an embodiment of the illuminable display scale device according to the present invention in cross section.
- Fig. 1 in addition to the reference numerals 4 'already introduced, denote a modified system carrier; 5 'a light guide device instead of the lens 5; 11, 12, 13 a first, second and third area corresponding to the first to third display scales 1-3; 14, 15 plane-parallel surfaces of the light guide device 5 'in the second region 12; 16 a beveled area of the light guide device 5 'in the third area 13; 17 'a first semicircular section of the light guide device 5' in the first region 11; 17 ′′ a second triangular section of the light guide device 5 ′ in the first area 11; 17 ′′ ′′ an edge-shaped section of the light guide device 5 ′ in the first region 11, ⁇ > ⁇ > • an inclined surface, 18 an LED arrangement and 19 a light shaft.
- the dial 8 which has the first illuminable display scale 1 as a km / h scale in the first area 11, the second illuminable display scale 2 as a cruise control scale in the second area 12 and the third illuminable display scale 3 as an mph scale in the third area 13, is in FIG 3.
- the second illuminable display scale 2 is again arranged between the first illuminable display scale 1 and the third illuminable display scale 3, and all three display scales 1, 2, 3 are essentially the same as in the known illuminable display scale device according to FIG. 3 explained above concentric.
- the modified system carrier 4 ' is used in general to carry the dial 8 and the light guide device 5' and especially in the first area 11 as a reflector for the first light source device 7.
- the modified system carrier 4 ' which also serves as a reflector in the first region 11, and the specially shaped light disk or light guide device 5', the light beams of the first light bulb device in the form of the cold cathode fluorescent lamp 7 are also divided into two areas 11, 13 high luminance th, which are separated by the area 12 with low luminance.
- the second light source device 18 is an LED arrangement, by means of which only the cruise control display segments can be selectively illuminated.
- the between the first and second light source device 7; 18 on the one hand and the dial 8 on the other hand arranged light guide device 5 ' is designed in such a way that it guides the light beams L ⁇ of the first light source device 7 to the first area 11 and guides the light beams L 5 of the first light source device 7 to the third area 13, specifically through a special shape and arrangement with skilful use of the refraction laws of the light guide device 5 ', which consists for example of commercially available plexiglass.
- the first illuminable display scale 1 is arranged essentially in front of or above the first light source device 7, i.e. in the extension of the top view direction of an observer, and the third illuminable display scale 3 laterally offset from the first light source device 7.
- the display scale on the dial 8 is located exactly above light wells 19 in the system carrier 4 '. So that the scattering of light from the first light source device 7 into the cruise control display segments is prevented, the light guide device in the second area 12 has two plane-parallel surfaces 14, 15. In the parallel area of the luminous disk, the light is therefore without scattering through the area of the cruise control - Display segments directed.
- the first light source device 7 has a torus geometry, the cylinder axis being arranged substantially perpendicular to the viewing direction, and the light guide device 5 'adjacent to the first light source device 7 has a corresponding semicircular first cutout 17' adjacent to the first light source device 7.
- the first semicircular cutout 17 'on the underside of the light guide device 5' weakens the luminance directly above the first light source device and directs the light into the lateral areas of the light guide device 5 '.
- the light guide device 5 ' is structured in such a way that no light rays from the first light source device 7 can illuminate the cruise control display segments directly.
- the light beam L 4 represents the limit case in which light incident under the critical angle of total reflection no longer directly reaches the cruise control display segments.
- the light guide device 5 ′ has a triangular second cutout 17 ′′ adjacent to the dial 8. All light rays that hit the upper boundary surface of the light guide device 5 'at a larger angle are totally reflected by the beveled shape, so that they can only couple out of the light guide device in the area of the third display scale 3, which over the step-shaped structure of the beveled area 16 is located, which serves to decouple the light beam L 5 at this point in the third display scale 3.
- the light beams L 6 which strike the upper boundary surface of the light disk at a smaller angle, are coupled out in the region of the first display scale 1.
- the light guide has an edge 17 '''which prevents light beams from the first light source device from reaching the second display scale directly.
- the light guide device 5 ' has the surface 17''''which is inclined in such a way that incident rays L 6 are either passed to the first display scale 1 or deflected by total reflection in such a way that they are again totally reflected in the second area 12 L 5 and thus do not illuminate the second display scale 2.
- the cruise control segments are illuminated with the LEDs of the LED arrangement 18, which are placed below the light wells 19.
- the plane-parallel structure of the light guide device 5 'in this area prevents the LED light from being scattered next to the cruise control display segments and thus cannot contribute to illuminating the same.
- a high contrast is achieved between illuminated and non-illuminated display segments, since no light can be scattered into neighboring display segments.
- the display segments of the cruise control can be selectively illuminated with the LEDs, wherein the first and the third display scales 1, 3 can be illuminated over the whole area by the cold cathode fluorescent lamp 7 without interference reflections.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Instrument Panels (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Details Of Measuring Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/555,412 US6422710B1 (en) | 1998-09-28 | 1999-06-18 | Illuminated-display graduated scale device |
EP99939371A EP1044115A1 (de) | 1998-09-28 | 1999-06-18 | Beleuchtbare anzeigeskalenvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19844316.1 | 1998-09-28 | ||
DE19844316A DE19844316A1 (de) | 1998-09-28 | 1998-09-28 | Beleuchtbare Anzeigeskalenvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000018609A1 true WO2000018609A1 (de) | 2000-04-06 |
Family
ID=7882434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/001798 WO2000018609A1 (de) | 1998-09-28 | 1999-06-18 | Beleuchtbare anzeigeskalenvorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6422710B1 (de) |
EP (1) | EP1044115A1 (de) |
DE (1) | DE19844316A1 (de) |
WO (1) | WO2000018609A1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10021099A1 (de) | 2000-05-02 | 2001-11-15 | Bosch Gmbh Robert | Beleuchtungs- und Anzeigevorrichtung |
DE10021114B4 (de) * | 2000-05-02 | 2009-04-30 | Robert Bosch Gmbh | Beleuchtungsvorrichtung |
JP2002135529A (ja) * | 2000-10-24 | 2002-05-10 | Nippon Sheet Glass Co Ltd | ライン照明装置 |
DE10064759A1 (de) * | 2000-12-22 | 2002-07-04 | Siemens Ag | Zifferblatt |
US20020175012A1 (en) * | 2001-05-23 | 2002-11-28 | Sun Wen Jun | Control system of vehicle cruise device |
JP2003329491A (ja) * | 2002-05-10 | 2003-11-19 | Denso Corp | 指針計器 |
DE10255480B3 (de) * | 2002-11-28 | 2004-03-04 | Preh-Werke Gmbh & Co. Kg | Bedienelement |
DE102004020122B4 (de) * | 2004-04-24 | 2007-06-06 | Diehl Aerospace Gmbh | LED-Röhren-Hybridbeleuchtungseinrichtung |
TWI315012B (en) * | 2005-01-28 | 2009-09-21 | Au Optronics Corporatio | System of backlight module and lcd using the same |
DE102005059092A1 (de) * | 2005-12-10 | 2007-06-14 | Bayerische Motoren Werke Ag | Anzeigeeinrichtung und Fahrzeug-Kombinationsanzeigeeinrichtung |
DE102006056150A1 (de) * | 2006-11-28 | 2008-05-29 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Vorrichtung zur Abstrahlung elektromagnetischer Strahlung und Anzeigevorrichtung |
US7896521B2 (en) * | 2007-05-04 | 2011-03-01 | Abl Ip Holding Llc | Adjustable light distribution system |
DE102007023066B4 (de) * | 2007-05-16 | 2015-09-10 | Continental Automotive Gmbh | Kombiinstrument |
JP2010002822A (ja) * | 2008-06-23 | 2010-01-07 | Ips Alpha Technology Ltd | 液晶表示装置 |
JP5334540B2 (ja) | 2008-11-19 | 2013-11-06 | 矢崎総業株式会社 | 車両用計器 |
DE102010023247A1 (de) * | 2010-06-09 | 2011-12-15 | Johnson Controls Gmbh | Ausstattungsteil mit einer Leuchtfläche |
JP5421881B2 (ja) * | 2010-09-14 | 2014-02-19 | 本田技研工業株式会社 | 車両用メータ装置 |
JP5348149B2 (ja) * | 2011-01-25 | 2013-11-20 | 株式会社デンソー | 表示装置 |
KR102138958B1 (ko) | 2013-10-14 | 2020-07-28 | 콘티넨탈 오토모티브 게엠베하 | 제어 디바이스의 입력 구역용 듀얼 그래픽 라벨 |
JP6338087B2 (ja) * | 2014-04-18 | 2018-06-06 | 日本精機株式会社 | 表示装置 |
EP3056870A1 (de) * | 2015-02-11 | 2016-08-17 | Continental Automotive Systems, Inc. | Doppelmessuhrenbeleuchtung mit einem lichtleiter |
JP6481551B2 (ja) * | 2015-07-27 | 2019-03-13 | 日本精機株式会社 | 表示装置 |
CN109459847B (zh) * | 2017-09-06 | 2021-08-24 | 信泰光学(深圳)有限公司 | 光学指示结构 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH659321A5 (en) * | 1983-04-21 | 1987-01-15 | Hasler Ag | Indicating instrument |
WO1988003663A1 (en) * | 1986-11-14 | 1988-05-19 | Robert Bosch Gmbh | Liquid crystal indicator, preferably for motor vehicles |
DE19532427C1 (de) * | 1995-09-02 | 1996-11-21 | Daimler Benz Ag | Kobinationsanzeigeeinheit für ein Kraftfahrzeug |
DE19547375A1 (de) * | 1995-12-19 | 1997-06-26 | Bosch Gmbh Robert | Anzeigeeinrichtung |
WO1999008075A2 (en) * | 1997-08-11 | 1999-02-18 | Ab Volvo | An indicating device, specially in a vehicle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU700555B2 (en) * | 1995-07-31 | 1999-01-07 | Toyoda Gosei Co. Ltd. | LED display device |
US5695269A (en) * | 1996-01-29 | 1997-12-09 | Delco Electronics Corporation | Multi-color display lighting by led |
US5915822A (en) * | 1996-08-09 | 1999-06-29 | Kansei Corporation | Meter with light transmitting board |
-
1998
- 1998-09-28 DE DE19844316A patent/DE19844316A1/de not_active Withdrawn
-
1999
- 1999-06-18 WO PCT/DE1999/001798 patent/WO2000018609A1/de not_active Application Discontinuation
- 1999-06-18 EP EP99939371A patent/EP1044115A1/de not_active Withdrawn
- 1999-06-18 US US09/555,412 patent/US6422710B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH659321A5 (en) * | 1983-04-21 | 1987-01-15 | Hasler Ag | Indicating instrument |
WO1988003663A1 (en) * | 1986-11-14 | 1988-05-19 | Robert Bosch Gmbh | Liquid crystal indicator, preferably for motor vehicles |
DE19532427C1 (de) * | 1995-09-02 | 1996-11-21 | Daimler Benz Ag | Kobinationsanzeigeeinheit für ein Kraftfahrzeug |
DE19547375A1 (de) * | 1995-12-19 | 1997-06-26 | Bosch Gmbh Robert | Anzeigeeinrichtung |
WO1999008075A2 (en) * | 1997-08-11 | 1999-02-18 | Ab Volvo | An indicating device, specially in a vehicle |
Also Published As
Publication number | Publication date |
---|---|
EP1044115A1 (de) | 2000-10-18 |
DE19844316A1 (de) | 2000-03-30 |
US6422710B1 (en) | 2002-07-23 |
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