A display device and a vehicle head-up display apparatus of the present disclosure include a substrate (15), light source devices (11), a transmission-type display panel (12), and an illumination optical system (13). The light source devices (11) are disposed on the substrate (15). The illumination optical system (13) guides illumination light from the light source devices (11) to the display panel (12). The illumination optical system (13) includes a first reflector (131), a quarter-wave plate (132), and a reflective polarizer (133). The first reflector (131) is disposed at a different position on the substrate (15) than the light source devices (11). The quarter-wave plate (132) is disposed between the first reflector (131) and the display panel (12). The reflective polarizer (133) is disposed between the quarter-wave plate (132) and the display panel (12).
DISPLAY APPARATUS AND VEHICULAR HEAD-UP DISPLAY
ANZEIGEVORRICHTUNG UND HEAD-UP-ANZEIGE IN EINEM FAHRZEUG
APPAREIL D'AFFICHAGE ET AFFICHAGE TÊTE HAUTE POUR VÉHICULE
2021-07-07
Patent
Elektronische Ressource
Englisch
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... |
Vehicular display apparatus, vehicular display method, and vehicular display program
Europäisches Patentamt | 2017
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