WO2007002000A1 - Thin instrument cluster with anti-reflective coating - Google Patents
Thin instrument cluster with anti-reflective coating Download PDFInfo
- Publication number
- WO2007002000A1 WO2007002000A1 PCT/US2006/023845 US2006023845W WO2007002000A1 WO 2007002000 A1 WO2007002000 A1 WO 2007002000A1 US 2006023845 W US2006023845 W US 2006023845W WO 2007002000 A1 WO2007002000 A1 WO 2007002000A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical coating
- light guide
- light
- display
- recited
- Prior art date
Links
- 239000006117 anti-reflective coating Substances 0.000 title description 3
- 239000011247 coating layer Substances 0.000 claims abstract description 89
- 230000003287 optical effect Effects 0.000 claims abstract description 86
- 239000003973 paint Substances 0.000 claims description 16
- 239000010410 layer Substances 0.000 claims description 12
- 238000000151 deposition Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000004313 glare Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- 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
-
- 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
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
- B60K35/22—Display screens
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- 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
Definitions
- Instrument clusters for vehicles are typically located on a vehicle dashboard and may include a speedometer, tachometer, engine condition indicator, ABS braking indicator, and other devices for monitoring vehicle operating conditions.
- the instrument cluster includes display marks that may have lighting to illuminate each mark.
- the ABS braking mark may be illuminated when the vehicle is undergoing ABS braking.
- Such lighting is provided by individual lamps that illuminate each indicator of the dashboard.
- individual lamps take up significant space and require a high voltage circuit to supply current to each of the lamps. The high voltage further requires insulation to protect against shock, thereby increasing the cost and size of the instrument cluster.
- optical light guides to direct illumination to each of the display marks of the instrument cluster.
- each mark requires its own light guide and light source so that each individual mark may be separately illuminated.
- a typical instrument cluster has many separate indicators that require such lighting.
- Each light guide associated with each indicator is painstakingly assembled into the cluster one at a time. Consequently, a great deal of time and effort is required to individually piece the light guides into the instrument cluster.
- dial applique is a film of plastic having instrument display marks, such as the hash marks of a speedometer gauge, the numbers for the gauge, vehicle telltales, and other marks. Most of the dial applique is opaque except for the illuminated portions.
- a light guide used with the dial applique, such as the light guide for the speedometer gauge, may illuminate large portions of the dial applique rather than just the marks. Accordingly, existing instrument displays waste lighting energy.
- An example instrument display includes a light source that selectively emits light and a light guide that receives the light.
- One or more optical coating layers are disposed on the light guide.
- the light guide has a first index of refraction, and the optical coating layer or layers have a second index of refraction that is greater than the first index of refraction of the light guide.
- the optical coating layer or layers reduce glare from ambient light and increase the light transmitting performance of the light guide.
- An example method includes depositing one or more optical coating layers on a light guide.
- the light guide has a first index of refraction and the optical coating layer or layers have a second index of refraction that is greater than the first index of refraction of the light guide.
- Another example instrument display includes a light source that selectively emits light and a light guide that receives the light.
- a plurality of opaque optical coating layers are disposed on the light guide to prevent light loss.
- the opaque optical coating layers include a white paint, a black paint, and a gray paint.
- Figure 1 is an exploded view of an example instrument display.
- Figure 2 is a schematic view of an example portion of a light guide and optical coating layer within the instrument display.
- Figure 3 is a schematic view of an example portion of a light guide and plurality of optical coating layers within the instrument display.
- Figure 4 is a schematic view of an example portion of a light guide and opaque optical coating layers within the instrument display.
- Figure 1 illustrates an exploded view of an example instrument display 10, such as an instrument cluster for a motor vehicle.
- a back cover 12 provides support for movements 14 associated with pointers 16.
- a control unit 18, here a printed circuit board, has clusters of light emitting diodes 20, which are controlled by the control unit 18 to respond to various vehicle conditions in a known manner.
- Light emitting diodes 20 protrude through light housing 22 and provide light to light guides 24. Light from light emitting diodes 20 illuminates light guides 24.
- a liquid crystal display 25 may also be associated with the instrument display 10 and be illuminated by one of the light guides 24.
- a dial applique 27 may be used in cooperation with the light guides 24 to provide desired graphics.
- the light guides 24 each have one or more instrument display marks 30, such as fuel level indicator, engine light indicator, or other known vehicle display marks. Each light guide 24 may be individually illuminated so that the desired instrument display marks 30 are illuminated upon the appropriate vehicle condition.
- Figure 2 shows a simplified schematic cross-sectional view of a portion of one of the light guides 24 that receives light from one of the light emitting diodes 20 to illuminate one of the instrument display marks 30.
- the light is transmitted through the light guide 24, which is made of known transparent or translucent material having an index of refraction.
- the index of refraction refers to a ratio of the speed of light in a vacuum to the speed of light in a substance.
- the light guide 24 includes a front surface 32a that faces in a direction toward the front lens 28 and a rear surface 32b that faces in a direction away from the front lens 28.
- an optical coating layer 42 i.e., an anti-reflective coating
- the optical coating layer 42 is painted or vapor deposited onto the light guide 24 in a known manner.
- the optical coating layer 42 is made of a known optical coating material that is transparent or translucent and has an index of refraction that is greater than the index of refraction of the light guide 24.
- the light guide 24 is made of a known plastic material, such as acrylic or polycarbonate, having an index of refraction between about 1.5 and 1.6.
- the instrument display mark 30 is on the rear surface 32b.
- the optical coating layer 42 provides a dual function of reducing ambient light reflection and reducing light loss of the light guide 24, as will be described below.
- the optical coating layer 42 is disposed on only one of the front surface 32a or the rear surface 32b.
- light 44a emitted from the light emitting diode 20 propagates within the light guide 24 to an interface between the front surface 32a of the light guide 24 and the optical coating layer 42 at an angle, ⁇ .
- a portion 44b of the light 44a internally reflects off of the front surface 32a and continues to propagate within the light guide 24.
- Another portion 44c of the light 44a does not internally reflect and propagates through the optical coating layer 42 at an angle, ⁇ , that is different than the angle alpha (i.e., different because of the difference in the indices of refraction between the light guide 24 and the optical coating layer 42).
- the portion 44c of the light 44a propagates toward the outer surface of the optical coating layer 42 and internally reflects back into the light guide 24.
- the optical coating layer 42 prevents the portion 44c of the light 44a from escaping the light guide 24, thereby reducing the light loss of the light guide 24.
- the optical coating layer 42 also reduces reflected ambient light in a direction normal to the optical coating layer 42.
- This provides the advantage of improved viewing of the instrument display mark 30 with less interference from reflected ambient light.
- ambient light 54a propagates normal to the light guide 24 and optical coating layer 42.
- a portion 54b of the ambient light 54a reflects off of the surface of the optical coating layer 42 back toward the front lens 28 (i.e., toward an observer).
- Another portion 54c of the ambient light 54a propagates thought the optical coating layer 42 and reflects off of the front surface 32a of the light guide 24.
- the reflected portions 54b and 54c are at least partially out of phase and destructively interfere with each other in a known manner, thereby reducing the reflected light.
- the optical coating layer 42 is deposited on the light guide 24 in a desired thickness, d, to maximize the destructive interference and minimize the reflected light for rays normal to the surface.
- Figure 3 is a simplified schematic cross-sectional view of another example in which five layers of the optical coating layer 42 are on the light guide 24. The added optical coating layers 42 further reduce the light loss of the light guide 24.
- the light emitting diode 20 emits light 64a that propagates within the light guide 24 toward an interface between the front surface 32a of the light guide 24 and the first of the optical coating layers 42 at an angle, ⁇ .
- a portion 64b of the light 64a internally reflects off of the front surface 32a and continues to propagate within the light guide 24.
- Another portion 64c of the light 64a does not internally reflect and propagates through the first of the optical coating layers 42 at an angle, ⁇ , that is different than the angle alpha (i.e., different because of the difference in the indices of refraction between the light guide 24 and the optical coating layer 42).
- the portion 64c of the light 64a propagates toward the outer surface of the first of the optical coating layers 42.
- a portion 64d of the light 64c internally reflects back into the light guide 24.
- Another portion 64e of the light 64c does not internally reflect and propagates through the second of the optical coating layers 42 at the angle ⁇ .
- a portion 64f of the light 64e internally reflects back into the light guide 24.
- Another portion 64g of the light 64e does not internally reflect and propagates through the third of the optical coating layers 42 at the angle ⁇ .
- the portion 64g of the light 64c propagates toward the outer surface of the third of the optical coating layers 42.
- a portion 64h of the light 64g internally reflects back into the light guide 24.
- Another portion 64i of the light 64g does not internally reflect and propagates through the fourth of the optical coating layers 42 at the angle ⁇ .
- the portion 64i of the light 64g propagates toward the outer surface of the fourth of the optical coating layers 42.
- a portion 64j of the light 64i internally reflects back into the light guide 24.
- Another portion 64k of the light 64i does not internally reflect and propagates through the fifth of the optical coating layers 42 at the angle ⁇ .
- the portion 64k of the light 64i propagates toward the outer surface of the fifth of the optical coating layers 42.
- At least a portion 641 of the light 64k internally reflects back into the light guide 24.
- the optical coating layers 42 prevent the portions 64d, 64f, 64h, 64i, and 641 from escaping the light guide 24, thereby reducing the light loss of the light guide 24.
- the five optical coating layers 42 also reduce reflected ambient light in a direction normal to the optical coating layers 42, as explained regarding the example shown in Figure 2. In the illustrated example, a greater number of optical coating layers 42 can be used for even further reduction in light loss and reflection.
- Figure 4 shows a simplified schematic cross-sectional view of another example light guide 24'.
- the light guide 24' includes a plurality of opaque optical coating layers 142a, 142b, and 142c.
- the opaque optical coating layer 142a is a white paint that is painted directly onto the front surface 132a and rear surface 132b of the light guide 24'.
- the opaque optical coating layer 142b is a black paint that is painted directly onto the opaque optical coating layer 142a on the front surface 132a of the light guide 24'.
- a display mark 130 is etched into the opaque optical coating layers 142a and 142b in a known manner.
- the third opaque optical coating layer 142c is a paint of a different color than the white and black paints that is painted directly onto the black paint over the display mark 130.
- the paint of the third opaque optical coating layer 142c is gray.
- the opaque optical coating layers 142a and 142b function to prevent light from the light emitting diode 20 from escaping the light guide 24' except at the etched display mark 130.
- the light guide 24' directs the light from the light emitting diode 20 out of the light guide 24' through the etched display mark 130 such that the portion of the third opaque optical coating layer 142c under the display mark 130 illuminates and becomes visible to an observer of the instrument display 10. In this manner, the light guide 24' provides the advantage of illuminating the etched display mark 130 without significant light loss, which may interfere with the viewing of marks and reduce the illuminated intensity in prior displays.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Optics & Photonics (AREA)
- Details Of Measuring Devices (AREA)
- Instrument Panels (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112006001629T DE112006001629T5 (en) | 2005-06-20 | 2006-06-20 | Thin instrument block with anti-reflection coating |
JP2008518284A JP2008544464A (en) | 2005-06-20 | 2006-06-20 | Thin dash panel with anti-reflective coating |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69219105P | 2005-06-20 | 2005-06-20 | |
US60/692,191 | 2005-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007002000A1 true WO2007002000A1 (en) | 2007-01-04 |
Family
ID=37110361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2006/023845 WO2007002000A1 (en) | 2005-06-20 | 2006-06-20 | Thin instrument cluster with anti-reflective coating |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2008544464A (en) |
DE (1) | DE112006001629T5 (en) |
WO (1) | WO2007002000A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013164400A1 (en) * | 2012-05-03 | 2013-11-07 | Johnson Controls Automotive Electronics Sas | Light guide and covering element, instrument panel and method for manufacturing a decorative element |
FR3004399A1 (en) * | 2013-04-16 | 2014-10-17 | Faurecia Bloc Avant | MOTOR VEHICLE BODY COMPONENT COMPRISING A LIGHT SOURCE AND LIGHT GUIDING MEANS |
US9827736B2 (en) | 2014-02-03 | 2017-11-28 | Johnson Controls Automotive Electronics Gmbh | Cover panel for at least one display instrument in a vehicle |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101849601B1 (en) * | 2011-01-18 | 2018-04-18 | 삼성디스플레이 주식회사 | Light guide module, method of manufacturing thereof and backlight assembly having the same |
US20170057356A1 (en) * | 2015-08-27 | 2017-03-02 | James Frederick Krier | Seamless instrument cluster |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3752974A (en) * | 1971-12-13 | 1973-08-14 | Coastal Dynamics Corp | Uniform illumination with edge lighting |
EP0732679A1 (en) * | 1995-03-16 | 1996-09-18 | Hayashi Telempu Co., Ltd. | Display panel for instruments installed in vehicles |
US20030090886A1 (en) * | 2001-11-15 | 2003-05-15 | Siemens Vdo Automotive Corporation | Thin instrument cluster |
EP1365262A2 (en) * | 2002-05-24 | 2003-11-26 | Siemens Aktiengesellschaft | Optical display |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960016341B1 (en) * | 1993-12-16 | 1996-12-09 | 김광원 | Light display device |
JPH09330609A (en) * | 1995-12-05 | 1997-12-22 | Matsushita Electric Ind Co Ltd | Back-light device and color display device |
JP2000035347A (en) * | 1998-07-16 | 2000-02-02 | Yazaki Corp | Meter structure |
JP3532119B2 (en) * | 1999-06-01 | 2004-05-31 | 富士通化成株式会社 | Light guide plate for front light unit |
-
2006
- 2006-06-20 DE DE112006001629T patent/DE112006001629T5/en not_active Ceased
- 2006-06-20 JP JP2008518284A patent/JP2008544464A/en active Pending
- 2006-06-20 WO PCT/US2006/023845 patent/WO2007002000A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3752974A (en) * | 1971-12-13 | 1973-08-14 | Coastal Dynamics Corp | Uniform illumination with edge lighting |
EP0732679A1 (en) * | 1995-03-16 | 1996-09-18 | Hayashi Telempu Co., Ltd. | Display panel for instruments installed in vehicles |
US20030090886A1 (en) * | 2001-11-15 | 2003-05-15 | Siemens Vdo Automotive Corporation | Thin instrument cluster |
EP1365262A2 (en) * | 2002-05-24 | 2003-11-26 | Siemens Aktiengesellschaft | Optical display |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013164400A1 (en) * | 2012-05-03 | 2013-11-07 | Johnson Controls Automotive Electronics Sas | Light guide and covering element, instrument panel and method for manufacturing a decorative element |
FR2990169A1 (en) * | 2012-05-03 | 2013-11-08 | Johnson Contr Automotive Elect | GUIDE LIGHT AND COVERING ELEMENT, DASHBOARD AND METHOD FOR MANUFACTURING A DECORATIVE ELEMENT |
US10065350B2 (en) | 2012-05-03 | 2018-09-04 | Visteon Electronics France | Light guide and covering element, instrument panel and method for manufacturing a decorative element |
FR3004399A1 (en) * | 2013-04-16 | 2014-10-17 | Faurecia Bloc Avant | MOTOR VEHICLE BODY COMPONENT COMPRISING A LIGHT SOURCE AND LIGHT GUIDING MEANS |
EP2793062A1 (en) * | 2013-04-16 | 2014-10-22 | Faurecia Bloc Avant | Motor vehicle body element including a light source and a light-guiding means |
US9827736B2 (en) | 2014-02-03 | 2017-11-28 | Johnson Controls Automotive Electronics Gmbh | Cover panel for at least one display instrument in a vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE112006001629T5 (en) | 2008-05-08 |
JP2008544464A (en) | 2008-12-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7671859B2 (en) | Thin instrument cluster with anti-reflective coating | |
US7525446B2 (en) | Display device having decorative member on screen | |
US7347576B2 (en) | Ultraviolet light instrument cluster | |
EP1501696B1 (en) | Display device | |
GB2449262A (en) | Instrument illumination device | |
EP1319553B1 (en) | Vehicle instrument | |
US8128248B2 (en) | Dial plate with diffuse lighting | |
US20030048194A1 (en) | Indicator device for vehicle using polarizing film layer | |
US6404333B1 (en) | Gauge instrument for use in a motor vehicle | |
US20030090886A1 (en) | Thin instrument cluster | |
GB2245380A (en) | An automotive display apparatus | |
WO2007002000A1 (en) | Thin instrument cluster with anti-reflective coating | |
US7537363B2 (en) | Insert molding dial structure | |
JP2008009432A (en) | Indicator panel | |
JP5083498B2 (en) | Lighting device | |
JP5239698B2 (en) | Vehicle instrument | |
US5964514A (en) | Illuminating instrument panel gauge with indicator and graphics | |
GB2266374A (en) | Display apparatus | |
US11002902B1 (en) | Tick mark luminance adjustment tool | |
JP5509613B2 (en) | Display device | |
JP2001066166A (en) | Display device for measuring instrument | |
JP2009019930A (en) | Vehicle instrument | |
JP4268553B2 (en) | Instrument device | |
JP2005024648A (en) | Display device | |
JP2001239857A (en) | Indicating device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2008518284 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120060016296 Country of ref document: DE |
|
RET | De translation (de og part 6b) |
Ref document number: 112006001629 Country of ref document: DE Date of ref document: 20080508 Kind code of ref document: P |
|
WWE | Wipo information: entry into national phase |
Ref document number: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 06785120 Country of ref document: EP Kind code of ref document: A1 |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |