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1. EP2769867 - HEADUP DISPLAY APPARATUS FOR VEHICLE

Office
European Patent Office
Application Number 12842531
Application Date 05.10.2012
Publication Number 2769867
Publication Date 27.08.2014
Publication Kind B1
IPC
B60K 35/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT 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
35Arrangement or adaptations of instruments
G02B 27/01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
01Head-up displays
G09F 9/00
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
CPC
B60K 35/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT 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
35Arrangement of adaptations of instruments
G02B 2027/0118
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
01Head-up displays
0101characterised by optical features
0118comprising devices for improving the contrast of the display / brillance control visibility
B60K 2370/1529
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT 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
2370Details of arrangements or adaptations of instruments specially adapted for vehicles, not covered by groups B60K35/00, B60K37/00
15Output devices or features thereof
152Displays
1529Head-up displays
B60K 2370/785
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT 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
2370Details of arrangements or adaptations of instruments specially adapted for vehicles, not covered by groups B60K35/00, B60K37/00
70Arrangements of instruments in the vehicle
77characterised by locations other than the dashboard
785on or in relation to the windshield or windows
B60K 2370/334
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT 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
2370Details of arrangements or adaptations of instruments specially adapted for vehicles, not covered by groups B60K35/00, B60K37/00
20Optical features of instruments
33Illumination features
334Projection means
G02B 27/0101
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
01Head-up displays
0101characterised by optical features
Applicants NIPPON SEIKI CO LTD
Inventors TAKATOH KATSUEI
KOBAYASHI MITSUGU
Designated States
Priority Data 2011230271 20.10.2011 JP
Title
(DE) HEADUP-ANZEIGEVORRICHTUNG FÜR EIN FAHRZEUG
(EN) HEADUP DISPLAY APPARATUS FOR VEHICLE
(FR) APPAREIL D'AFFICHAGE TÊTE HAUTE POUR UN VÉHICULE
Abstract
(EN) Provided is a headup display apparatus for vehicles, said headup display apparatus being capable of suppressing deterioration of luminance of virtual images, while avoiding a cost increase. This headup display apparatus is provided with: a light emitting unit (70) having at least a light emitting body (72) that emits output light (L2); a liquid crystal display (20) which emits display light (L1); a concave mirror (41) which reflects the display light (L1); and a housing (80) which houses the light emitting unit (70), the liquid crystal display (20), and the concave mirror (41). The output light (L2) that has been emitted from the light emitting body (72), and the display light (L1) that has been reflected by the concave mirror (41) are radiated to a windshield (13) through a translucent cover (85), and a virtual image (V) obtained by means of the radiation is visually recognized by a driver (14). The light emitting unit (70) is disposed inside of the housing (80) such that the light emitting unit faces the windshield (13) with the translucent cover (85) therebetween.
(FR) L'invention concerne un appareil d'affichage tête haute pour des véhicules, ledit appareil d'affichage tête haute étant capable de supprimer la détérioration de la luminance d'images virtuelles tout en évitant une augmentation du coût. L'appareil d'affichage tête haute selon l'invention comprend : une unité d'émission de lumière (70) comportant au moins un corps d'émission de lumière (72) qui émet une lumière de sortie (L2) ; un écran à cristaux liquides (20) qui émet une lumière d'affichage (L1) ; un miroir concave (41) qui réfléchit la lumière d'affichage (L1) ; et un boîtier (80) dans lequel sont logés l'unité d'émission de lumière (70), l'écran à cristaux liquides (20) et le miroir concave (41). La lumière de sortie (L2) émise à partir du corps d'émission de lumière (72) et la lumière d'affichage (L1) réfléchie par le miroir concave (41) sont projetées en direction d'un pare-brise (13) à travers un cache translucide (85), et une image virtuelle (V) obtenue par le biais de la projection est reconnue visuellement par un conducteur (14). L'unité d'émission de lumière (70) est disposée à l'intérieur du boîtier (80) de façon à faire face au pare-brise (13), le cache translucide (85) étant interposé entre eux.